Here is why some companies/IT departments don't scale and a lot of people is overloaded with work.
As DHH explains: "Management... can't do anything by itself... only through other people.
It is "hey, can you join this meeting?"
"hey, can you do a 1 on 1?"
"hey, can we do some planning?"
Every bit of it is something that pulls someone who is actually working on things away from that work and into the managerial orb."