Re: Pro coaches that don't pad there own fighters
i use mitts for
1. skill introduction
4. reactive drills
4. adding progressive variables one element at a time in a controlled environment
it can be a useful tool for fine tuning a skill on it's way into sparring. lots of coaches and boxers use mitts for an ego stroke because it looks fancy, but if what's done on mitts is not been seen in sparring then its a waste. there's a progression. if i don't see a skill at one level then chances are i'm not going to see it at the next challenge up a level.
shadow box > bag > drill > mitts > situation/condition spar > open/full spar > outside spar (with another gym) > competition > tournament (obviously this is an amateur scenario. even though your question was for pros you probably see my point since pros still learn new stuff too)
there's a lot of steps between mitts and true high level competition.
many pro camps have a guy who is only doing mitts (some guys make a whole profession just holding mitts, get their foot in the door as a coach and gain behind the scenes experience).
and a good head coach is someone who knows how to delegate well, not someone who has to do it all himself.