To be a baseball catcher, in addition to learning the mechanics of his job, the player also has to know something about “handling” pitchers. He must get to know their capabilities, what kind of temperament they have, etc. If the pitcher is a very nervous boy and inclined to pitch too fast, it’s up to the catcher to hold the ball longer between pitches and slow him down.
If the pitcher gets discouraged quickly, the catcher ought to talk to him and try to keep his spirits up.