OTOH the best manager I had was a "I used to code" manager. However, the situation was VERY different from a Silicon Valley startup, it was for a credit rating

OTOH the best manager I had was a "I used to code" manager. However, the situation was VERY different from a Silicon Valley startup, it was for a credit rating company with very stable systems. I might agree with the assertion that the manager must keep up with tech for a startup or fast-paced Silicon Valley company. 30%, 20% or whatever.