The manager almost never has time to do these things properly.
... and has the power to pick and choose what they work on. My present manager does this and only does the fun/interesting stuff leaving the grunt work to the team. Sometimes he does half a ticket, gets bored, and “delegates” the rest.
I often do mediocre / small / shit tickets, it's definitely true that my staff have way more interesting tasks than I ever do.
A manager who picks clean interesting stuff and leaves the rest would be an absolute nightmare to work for. He shouldn't be in the business of managing people, since his self-interest now interferes with the interests of the team and the company.
