Yes, I have seen that too, but that's not what I was talking about.
I have heard about a case where really the best programmer left, and now everybody else had more responsibility, had to learn about parts of the code they did not know previously, had to fix harder problems.
So, everybody else was getting better because the one person who could help with the hard stuff was not there anymore.
But I honestly can't remember where I heard that...
Ah, I've also seen that situation. But both times it was because the lead programmer was an autocrat who would scream at people if they did things wrong or revert their code or fail their code reviews, etc.
They were, as individuals, very productive, but they suppressed the productivity of the rest of the team.
That reminds me of "The Metamorphosis" by Franz Kafka. The transformation of Gregor Samsa (who was the family's the primary breadwinner) into an insect turns out to have a few unexpected benefits for the family. The develop self-confidence, regain health and skill, all that was lost because of their dependance on Gregor.
I have heard about a case where really the best programmer left, and now everybody else had more responsibility, had to learn about parts of the code they did not know previously, had to fix harder problems.
So, everybody else was getting better because the one person who could help with the hard stuff was not there anymore.
But I honestly can't remember where I heard that...