I'm curious as to who is in the bullpen working with the pitchers as they warm up. My coaching experience peaked at the high school level and was 15+ years ago, but it seems like 1) pitchers are not mentally prepared to go into a game and 2) mechanics are not being given the attention they need (flying open, dragging arm, etc.). These are things that, if simply brought to attention early in the bullpen session, can be corrected. ST is in the dugout for games, you have limited mound visits for catchers to notice and correct. This is what separates pitchers from throwers.