PM and PMM at big companies are effectively middle-management. Business manager hiring leans toward the trajectory you describe because 1) its the largest, tra

PM and PMM at big companies are effectively middle-management. Business manager hiring leans toward the trajectory you describe because 1) its the largest, traditional low-volatility career path for top performers out of good schools 2) it ensures the candidate has passed through a number of relatively rigorous admission filters on pedigree, culture, diligence and performance, and 3) at successful large companies the senior managers/execs are mostly MBA grads and they themselves are biased to hiring younger versions of themselves as reports.