Interesting. Good points. And, of course, if she IS rattled, it is a caring act to pull her. How it is done is what most matters. And that has to do with the relationship between coach and players. If good he/she can do about anything- players will not take exception, feel abused, belittled. If the fans saw she was struggling then likely it was then seen as appropriate and no blame (to take her out.) So depends. In baseball while fans do expect the 'hook' to quickly follow poor performance, other factors can apply- who is in the bullpen, how long has this pitcher been in the game, etc. To name a few. But also that is professional and the word alone draws forth performance expectations. And money is involved.