Scorekeepers and Pitch Count/Control Console Operator are to be a responsible and trained ADULT Volunteer assigned by Managers, If no responsible/trained Adult volunteer is available, the Manager must appoint a team Coach to this position. 

For each game, every team (except Rookies) should appoint:

• One Scorekeeper (provided by HOME TEAM)
  
• One Pitch Count/Control Console Operator (provided by VISITOR TEAM)

Little League Limits Here: 
https://www.littleleague.org/playing-rules/pitch-count/

Limits Concerning Catchers:

A player that pitches 41 or more pitches in a game CANNOT play catcher in that same game.

A player can catch a maximum of 3 innings if they intend to also pitch in that game; If a player starts a 4th inning as the catcher (even one warm up pitch) they cannot pitch in that game.