DING,DING, DING,... We have a winner! ...seriously? I mean...really? I think a pitching coach has a significantly greater impact on a pitching staff than any catcher would. Yeah, catchers can have some impact, but the pitching coach is there to, you know, coach. He's there to analyze his pitchers and make sure he gets the best possible production out of them while protecting them from injury. This includes going over hours of game tape with guys, making mechanical adjustments, overseeing various exercises, keeping pitch counts, and a ton of other things which come with coaching. It's his job to do those things. A catcher, on the other hand, has nowhere near the same impact. Yeah, a catcher can educate himself to do those things, but his basic job with a pitcher is to call a game and receive the ball without incident. On occasion, he might need to do stuff like switch up the signs or go out to the mound to calm his guy down. That's pretty much it. The difference between the two is rather stark, if you ask me. The impact of a pitching coach on a given pitching performance is a heck of a lot greater than a catcher.