If you are an advanced-degree candidate preparing for Bridge to BCG and have only studied cases alone, book a live practice case with a partner. Reading teaches the method; a conversation shows whether you can choose an approach, ask for information, calculate aloud and make a recommendation.
This page is about finding and using the first few partners well. The short cost-reduction example gives them a way to test your thinking in an unfamiliar business. Programme eligibility and dates change by cycle, so confirm those separately before setting your interview timetable.
Confirm the programme and your stage
Check BCG's current Bridge programme page and your own invitation for eligibility, dates and the next interview step. The 2026 workshop's application deadline has passed; do not build a future plan from that cycle's rules.
Tell a potential partner which stage you are preparing for and when it occurs. “Preparing for Bridge selection” and “preparing for a subsequent full-time interview” call for different session plans. The exact schedule matters more to your partner request than repeating last year's eligibility list.
Find someone who will make you explain the unfamiliar
A fellow researcher can be a good partner, especially from a different discipline. They will understand the transition while making you explain ideas that your usual colleagues take for granted. A business-background peer can help you identify missing commercial concepts.
You can contribute careful reasoning, numerical checks and thoughtful feedback in return. Prepare the case you give them. The partnership should be reciprocal even when your strengths differ.
Try your graduate careers service, consulting society or PrepLounge's peer network. Ask for a specific trial appointment:
I'm a PhD candidate preparing for Bridge to BCG interviews. I have studied examples but need live practice, particularly cost reduction and unfamiliar industries. Can we do a reciprocal session on Thursday, 18:00–19:30 Eastern, in English? I'll prepare the case I give you and would value feedback on whether my analysis leads to a clear decision.
Start unfamiliar industries with the operating model
You do not need to know every industry before practising. Start by understanding what the organisation does, what it is trying to achieve and what drives the relevant economics.
For a delivery business, ask what counts as a delivery, how routes are organised and which costs change with activity. For a software business, understand who pays, how pricing works and what it costs to serve an additional customer. These questions make the problem analysable without a long industry lecture.
Your partner should distinguish useful clarification from postponing the work. Once you have enough information for an initial analysis, proceed and test the important uncertainties as they arise.
Quick Case Opening Drill
A payroll software firm sells to accountancy practices, each running payroll for many small clients. Support cost per subscription rose 15% this year.
- Paying subscriptions
- Flat versus last year
- Pricing
- One flat fee per practice
- Payroll runs processed
- Up 40%
Which opening question best connects these facts to the rising support cost?
Practise cost reduction with a decision, not a cost list
Give your partner a compact original case: a delivery company handles 60,000 monthly orders, half on dense routes at £4 each and half on dispersed routes at £8 each. Fixed monthly costs are £100,000. Management wants lower cost without reducing reliability.
Current cost is £460,000. The dispersed routes account for £240,000 of variable cost despite handling half the orders. Ask your partner what they would investigate there before proposing a tool or a cut. Which cost is avoidable, and which service measure must stay intact?
Now reveal a routing tool that saves £1 per dispersed order but costs £20,000 monthly. At 30,000 dispersed orders, that leaves £10,000 monthly savings before any one-off implementation cost. The candidate should recommend a pilot that measures actual savings and delivery windows, not approve the purchase from a spreadsheet alone.
Use a threshold to focus your investigation
Ask your partner to reduce dispersed volume from 30,000 to 15,000 orders while keeping the £1 per-order saving. The tool now saves £15,000 against £20,000 monthly running cost, so it increases cost by £5,000.
Break-even is 20,000 dispersed orders per month before implementation cost. Ask for a one-sentence recommendation: “At current volume I would pilot the tool, but it only pays for itself above 20,000 dispersed orders. I need the route-volume outlook and evidence that service reliability holds.”
The purpose of this example is the partner's challenge and feedback. After the answer, ask where the candidate explained the threshold clearly, where they skipped a unit and whether the test would actually change the decision.
Quick Case Math Drill
An online pet-food retailer packs every order by hand and is weighing whether to lease an automated packing machine.
- Labour saving
- £0.60 per order packed
- Machine lease
- £18,000 per month
- Current volume
- 36,000 orders per month
By how many orders could monthly volume fall before the saving stops covering the lease?
Let your research experience help the conversation
Researchers already practise forming hypotheses, testing explanations and examining evidence. Bring those habits into the case, then make the practical implication explicit.
Instead of proposing a broad research programme, identify the next uncertainty that could change the decision. In the routing example, an operational pilot that measures realised cost and delivery reliability is more useful than a general survey of logistics technology.
Ask your partner to interrupt when they cannot tell why an analysis matters. Practise answering in one sentence before adding supporting detail.
Make the next three sessions different
Use the first session to establish a baseline and identify one missing concept. Between sessions, practise that concept on short problems. Use the second session in a different industry to test whether the reasoning transfers. Make the third less guided, with feedback saved for the end.
Prepare a personal example too. Explain a research or team decision to someone outside your specialty: what was difficult, what you personally chose and what changed. Your analytical background becomes useful in an interview when another person can follow how you used it.
For a fuller schedule, adapt the three-week beginner plan around your confirmed interview date and the gaps your first partner session exposes.
Frequently asked questions
Bridge to BCG eligibility and timing
Can MBA students apply to Bridge to BCG?
The 2026 workshop excluded people with current or completed MBA study and specified advanced-degree eligibility. Do not assume those rules apply to a later cycle. Check BCG’s current Bridge page and your own invitation before applying or planning interview practice.
Is it too late to apply for Bridge to BCG?
The 2026 workshop application deadline has passed. BCG publishes dates for each cycle, so use the current programme page rather than an old article or forum post. If you already have an invitation, use its timetable to book practice sessions now.
What does taking part in Bridge to BCG lead to?
The next step depends on the programme cycle. BCG described an interview invitation for participants in its 2026 materials, but your current programme page and invitation are the sources for your own sequence. Prepare live cases with a partner once you know the relevant stage.
Finding a partner and planning sessions
Should I keep reading cases before I practise with a partner?
No. If you have mostly read and watched videos, book a live case now and use it as your baseline. It will show which parts you can actually perform: choosing an approach, asking for information, calculating aloud and making a recommendation. You can then pick one missing concept to work on.
Who makes a good case partner for an advanced-degree candidate?
A fellow researcher works well, especially one from a different discipline. They understand your transition but will make you explain ideas your usual colleagues take for granted. A peer with a business background adds something different, because they can spot commercial concepts you are missing. Practising with both types gives you each kind of challenge.
What can I offer a partner who has more business experience?
You can contribute careful reasoning, numerical checks and thoughtful feedback. Keep the partnership reciprocal by preparing the case you give them, rather than expecting them to supply all the material. That keeps the arrangement worthwhile for both of you, even when your commercial knowledge is behind theirs.
How should I plan my first three practice sessions?
Make each session different. Use the first to set a baseline and identify one missing concept, then practise that concept on short problems before the next session. Run the second in a different industry to test whether your reasoning transfers. Make the third less guided, and save feedback for the end.
Do I need a personal example ready as well as cases?
Yes, prepare one alongside your case practice. Explain a research or team decision to someone outside your specialty, including what made it difficult. Testing the story on a non-specialist shows whether it makes sense without the technical context your colleagues would normally fill in.
Handling case content
How do I approach a case in an industry I know nothing about?
Start with the operating model instead of trying to learn every industry first. Establish what the organisation does, what it wants to achieve and what drives the relevant economics. For a delivery business, ask what counts as a delivery, how routes are organised and which costs change with activity. For software, ask who pays, how pricing works and what it costs to serve customers.
How do I practise cost reduction without just listing costs?
Anchor the analysis in a decision. In the article's exercise, a delivery company handles 60,000 orders a month: half urban at £4 each and half dispersed at £8 each, plus £100,000 of fixed costs. Total cost is £460,000. The dispersed routes cost twice as much in variable terms for the same volume, which tells you where to investigate while keeping service reliable.
How does a break-even threshold help in a cost case?
It shows which fact would change the decision. Take a routing tool that saves £1 per dispersed order and costs £20,000 a month to run. It breaks even at 20,000 dispersed orders, before implementation costs. At today's 30,000 orders it saves £10,000 monthly, but at 15,000 it adds £5,000. You then focus on whether volume will stay above the threshold.
How can my research background help in a case interview?
Your habits of forming hypotheses, testing explanations and examining evidence transfer well, as long as you state the practical implication. Rather than proposing a broad research programme, identify the next uncertainty that could change the decision. In the routing example, an operational pilot that measures realised cost and delivery reliability is more useful than a general survey of logistics technology.