Mangers are expected to make decisions based on their knowledge of the game, their feel for players, and intuition for game situations. Mattie is rigid, clueless, and incapable of influencing the game in front of him. He gets walked on by others managers and umpires [when have we ever gotten a big call or reversal?] because he is incapable of exerting an influence over others - he is no personality such as Maddon, Boche, or Hurdle. He is a manager-in-training, and I have had enough of it.
Get rid of this guy before he does any more damage to a team that has a fast closing window.