Comment by Rainbooow

You forgot the worst one imo: * when re-org happens / changing jobs, you now have no deep knowledge at all in the stacks you are managing. And no time to develop such knowledge before the next re-org anyway. So you are constantly in a state where you are dealing with topics that you only have a superficial understanding about.

I really feel like the tension between <time to develop a deep understanding of your scope> VS <time before the next re-org (or layoff)> is not in your favor.

Problem is: going to Director level takes several years, at least. And even there, you are basically the CEO of a small start-up, in the sense that you need to constantly fight for "market shares", i.e. scope. Else your org risks getting irrelevant pretty fast, and you are in for a lot of trouble.