I am doing management and I'm an idiot at it.

Because it's like child rearing, or teaching, or vim vs emacs but there are more choices and many more dimensions, oh and there's almost no data, big cargo cults (from Toyota Improvement System, Deming, Agile manifesto to endless books by those who made it in the last decade), uncertainty is high, general intelligence is low, the interpersonal skills deficit is mind-boggling, burnout/disillusionment/fanaticism are rampant, perverted/misaligned incentives too, and of course all of that is driven by fundamental business constraints and various other sources of path-dependence.

Well, maybe they are right.

It’s because they are using the wrong metrics. The technical ability is not a strong contributor to success in leadership roles.