I'm sure we're all going to enjoy how easy his name will make headline puns. You've got an evocative color AND a word that can mean friend or beer or marijuana. "Dank Bud Smokes Opposition." That kind of thing.
Plus he carries on the baseball tradition of dudes with last names that describe them inaccurately, like Cecil Fielder or Bill White or Mike Trout.
Is he a good manager? I don't know. Probably, right? People didn't seem to blame him for getting fired. I prefer to analyze these things in hindsight. It's much safer.
I may not be confident saying Bud Black is a good manager, but I'm sure he's an improvement.