Dusty Baker has a long history of abusing pitchers' arms. He's old-school and doesn't see any reason to change because he's been a successful manager doing it his way. It doesn't appear that he's interested in looking at any data that shows pitchers shouldn't be left in games to throw 125 pitches.
Last year, the average # of pitches thrown by a starting pitcher in the NL was 93.6. The Cubs averaged 103.4.
He's been criticized for years but won't change. If it turns out Prior's elbow is more damaged than has been shown yet, Baker might get more heat for his pitcher usage.
I like him as a manager, in general, because he seems to get a lot out of his teams, but he should let a good pitching coach take care of his pitching staffs. In Seattle, Lou Piniella was brutal with young pitchers early in his tenure with the M's. The pitching finally started coming around when Brian Price was named pitching coach and Lou let Price take care of the pitching end of things.
Roger Angell: I was talking with Bob Gibson and I said: 'Are you always this competitive?' He said: 'Oh, I think so. I got a three-year old daughter, and I've played about 500 games of tic-tac-toe with her and she hasn't beat me yet.'