Nice first post. As much as the Twins medical staff seems to leave much to be desired; it's hard for me to believe that their culpability is so obvious or so legitimate, and that the Twins would be so willfully ignorant and stubborn to stick with an ineffective staff out of some myopic notion of loyalty.
I suspect that a player making millions of dollars a year - such as Pavano, or Span - probably has his own personal trainer, and a very attentive agent. I also imagine that the final decision on playing, and even medical procedures, lies with the player and agent first, with consultation with the medical staff and outside doctors. Judging by other player's around baseball (Stephen Drew, Carl Crawford, David Ortiz) who have had injury issues that become controversial, I think that a team's medical staff is in a very difficult position mediating between competing interests. The Twins caution around injuries and roster decisions probably is strongly influenced by agents looking out for their clients' - and their own - economic interests.
I also think there is a story here which could use some research.......
And yet the circumstantial evidence continues to ooze from the horrible results, as well as from former and current players' testimony of their bad experiences with said staff/FO.