Yep, that "because they want it most" is very dangerous. Anecdotally, the two worst managers I've had were developers, but I've had three really good managers

Yep, that "because they want it most" is very dangerous. Anecdotally, the two worst managers I've had were developers, but I've had three really good managers that were formally developers. Then the best manager I've had used to be a business analyst.