yes a catcher has to be a leader. that doesn't mean he is a rah rah guy, but he needs to be vocal as far as the games siuations etc. all of our signals go through the catcher. we usually let our catchers call pitches, so he must also be knowledgeable about hitting etc. in the dugout he doesn't have to be vocal, in the locker room he doesn't have to be vocal, but on the field... yes. i have been fortunate to have 4 catchers play for me as a head coach (about 15 total)and all of them have played college ball (10 of 15 total) some have been rah rah guys , some have been very quiet and lead by example, but all have been vocal leaders on the field during a game.