Not saying that I support a coach who uses the tactics you describe, but as an adult, you are well aware that there are always two sides and two distinct perspectives in every situation. I would be VERY concerned about your DD's attitude towards adverse game situations. Every pitcher gets frustrated when things don't go as planned, and is having a bad outing. Often it IS the defense behind her, but she has to remember that she has a huge responsibility in assuming the role as pitcher. The game is literally on her shoulders! Although she may be "internally frustrated", she will only make things worse by wearing her emotions and feelings on her sleeve. Aside from effective pitching prowess, her immediate second function is being captain of the ship - the very visible team leader. She will do irreparable harm to her team relationship by making negative comments about her supporting cast. Sometimes it's an impossible task, but her mindset must be to HELP her team mates instead of being an adversary. That way, when she's struggling, her team mates behind her will still "have her back". That's a VERY important concept.
Regardless of your DD's physical ability, the leadership role as a pitcher is equally important - especially at higher levels of the game. It takes practice to "ice those emotions" and focus on the big picture. One last thing - in my book, a strike-out isn't necessarily a bad at-bat. That stat is just a part of the game. How she deals with the outcome of a strike-out is another thing. How she deals with adversity in her pitching role also can have a very powerful effect on the rest of her game. Just some food for thought from an old "pitcher dad".
There are better ways. I would not be happy if my DD's coach played mind games like that.
