I doubt that agile is the problem here. I've seen organizations which weren't even agile having the exact same problem, not just for devs. It's pretty much the same with manager/project manager positions.

I think a much better explanation is outsourcing. A company which does a lot of outsourcing only needs a few people managing the partners. Managing an outsourcing partner is next to impossible for a junior as they lack the crucial experience. So they try to focus an experienced personnel. I don't know if that is the way outsourcing is supposed to be done, but at least its the way I have experienced it.

There might be other reasons for this senior-only sickness, but I am pretty sure pointing at agile is the wrong direction. If you are unhappy with the 'agile schedule', maybe its time for

> Responding to change over following a plan