i do feel like the catcher must be the leader on the field. they are the ones that are suppose to know where everyone is or where everyone is suppose to be. the catcher gives the pitch selection, gives the bunt calls, tells the fielder where to throw the ball when they field the bunt, gives the first and third calls, and be able to throw somebody out from behind the plate. that is way more responsibilities than a pitcher. i can only think of two responsibilities for a pitcher: trow strikes and get people out.