It also means less job security should one find oneself out of a job for whatever reason. A company needs about 1 manager per 8-10 ICs, and 1 second level manag

It also means less job security should one find oneself out of a job for whatever reason. A company needs about 1 manager per 8-10 ICs, and 1 second level manager per 8-10 team managers. Logically, that means there should be about 10% as many first level manager positions as IC positions, and about 1% as many second level positions as IC positions.