Build one case skill at a time, from timed maths practice and mental arithmetic to frameworks, charts and the final recommendation. Every answer is explained, so each rep teaches the method.
Give the CEO a 60-second recommendation: answer first, three reasons with numbers, risks and next steps.
Drills
Time
Right
Cost & operations ideas
These drills train cost and operations brainstorming: split the problem by cost line or by process step, list concrete levers in each bucket, then say which is biggest. Interviewers test it because cost cases punish generic answers: 'cut waste' earns nothing, while 'roster staff to footfall by the hour' shows you understand how the business runs.