Experienced hires and career switchers: your background as an edge
PhDs, doctors, engineers, lawyers and military officers each arrive strong in some of the five moves, and each has one typical trap. This lesson shows how to use the edge and avoid the trap. Its worked example follows a doctor moving into healthcare strategy.
Key takeaways
- Your background is not a gap to explain away. Each profession trains some of the five moves hard.
- Ask the same clarifying questions anyone would. Your background earns trust only once your structure is clear.
- Calculate as anyone would, and use your experience to check that the numbers make sense.
- Say one sentence that shows your edge, then return to the numbers. Translate every term from your field into plain words.
Key idea
Your background is not a gap to explain away. Each profession trains some of the five moves hard. Say which ones, use them openly in the case, and watch for the one habit from your field that hurts you.
Whatever role you are moving into, you will meet the same problem-solving test as everyone else. You will also be asked "why this move, and why now?". Interviewers often expect more from experienced candidates, not less. But most demanding careers already train parts of the method. This lesson is general advice. For the interview process and how your level is set, see the lessons on experienced hires and on switching careers.
| Background | The moves you are already strong in | How to show it | The trap from your field |
|---|---|---|---|
| PhD or researcher | Move 2 and move 4: breaking a question into testable parts, and judging evidence | State a hypothesis early and name the one fact that would disprove it | Waiting for perfect data; too much precision for a decision that needs a range |
| Doctor or clinician | Move 1 and move 3: finding the real complaint, and ranking likely causes first | Treat the case like a diagnosis: most likely cause first, then the test that confirms it | Going deep into clinical detail the interviewer did not ask for |
| Engineer | Move 2 and move 4: systems, constraints, bottlenecks and clean maths | Find the step that limits the system and size it in numbers | Optimising the machine and forgetting price, customers and people |
| Lawyer | Move 1 and move 5: a precise question, risk, and a clear written argument | Restate the question exactly, then give a firm answer with the risks named | Listing every risk without deciding; hedging the answer |
| Military officer | Move 5 and running the plan: deciding under uncertainty and leading people | Give the answer first, then the plan, owners and timing | Sounding certain before the facts are in; using military terms |
So-what
Pick your row and plan one sentence in each case that shows your strong moves, and one habit to switch off.
Worked case
A doctor in a healthcare strategy interview: why are clinic waits growing?
The prompt
Fictional and illustrative. You are a hospital doctor applying for a strategy role at a clinic chain in Riyadh, Saudi Arabia, and this is your case. One of the chain's clinics has growing waiting lists. It has 6 doctors, each working 8 hours a day and seeing 4 patients an hour. About 216 patients need an appointment each day. Routine cases such as repeat prescriptions and simple follow-ups are about 1 in 6 of them. What would you do?
The structure
- Daily backlog change = patients needing a doctor minus doctor capacity
- Capacity: doctors x hours x patients per hour
- Demand: all patients, and which of them truly need a doctor
- Options: more doctors, longer hours, or a different route for routine cases
Working it through
1. Doctor capacity
Six doctors, 8 hours each, 4 patients an hour.
Patients doctors can see a day:6 × 8 × 4 = 1922. Daily shortfall
Patients needing an appointment minus capacity: this is how fast the list grows.
Growth of the waiting list (patients a day):216 - 192 = 243. Doctor demand with nurse-led care for routine cases
If the routine 1 in 6 are seen by trained nurses instead, how many still need a doctor?
Patients who still need a doctor a day:216 × (1 - 1 ÷ 6) = 1804. Spare doctor capacity after the change
Doctor capacity minus the patients who still need a doctor.
Spare doctor appointments a day:192 - 180 = 12
The recommendation
The list grows by about 24 patients a day, because 216 patients need appointments and the doctors can see 192. A seventh doctor would add 32 appointments a day. I would not start there, because hiring a doctor is slow and costly. As a clinician I would first send routine cases, about 1 in 6, to appointments run by nurses under agreed clinical rules. Doctors would then need to see about 180 patients a day. That leaves 12 spare appointments to clear the backlog. Next I would check that nurses have time for about 36 extra patients a day, and that the rules are safe. My clinical background tells me which cases can safely move. I would say that in one sentence and spend the rest on the numbers.
Risks: Patients may still ask to see a doctor; Rules on what nurses may do vary by country and must be checked.
Next steps: Measure how many current appointments are routine; Check nurse hours available across the week.
Using this in the interview
- Ask the same clarifying questions anyone would. Your background earns trust only once your structure is clear.
- Calculate as anyone would, and use your experience to check that the numbers make sense. For example: "In the hospitals I know, an appointment takes about 15 minutes, so 4 an hour looks right."
- Say one sentence that shows your edge, then return to the numbers. Translate every term from your field into plain words.
- For "why this move?", talk about what draws you to the new work, not what you dislike about the old job.
How to answer "why leave, and why now", and how to turn industry depth into case strength without letting it take over the case.
Switching careers: why leave, and how to use your depthAn engineer in a case finds the bottleneck in a factory within two minutes. What is the trap to avoid next?
A lawyer is asked for a recommendation. Which answer uses their edge best?
Sources for this lesson (1)
- Recognized public explanations of case-interview concepts and terms
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