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
Reading charts
Most cases include at least one chart, and the interviewer wants the so-what quickly, not a tour of the axes. These drills train you to read the title and units first, compute growth rates, gaps and shares straight off the chart, and spot conclusions the data does not support. Candidates who describe a chart instead of interpreting it lose ground fast.