Sorry, maybe I was not clear enough. My point is that age is not the problem, but company tenure is (not for all, but for most). Specially on those who managed

Sorry, maybe I was not clear enough. My point is that age is not the problem, but company tenure is (not for all, but for most). Specially on those who managed to survive the corporate darwinism (by operating the company's red tape and processes) and reached the leadership role. I've met many older (40+) excellent technical people at IBM and usually their situation was that they were afraid of change and became used to IBM insanities, but gradually they are taking the leap of faith and jumping ship (AWS is taking them by the bucket). The feedback I get from those who left is that they can't believe they put up with IBM's crazyness for so long, as the other companies seem so lean and rational in comparison. One thing IBM still has a talent for is training tech professionals as I met some truly great ones there.