As would be expected, the Oakland Athletics decision to fire Bob Geren has brought the critics to the forefront. That's not to say these are just piling on now, but rather this decision is providing some folks a chance to go public with previous criticisms.
Rob Bowen was quick to hit Twitter today to air his displeasure with Bob Geren as a major league manager:
Finally the A's have realized Geren has destroyed a dozen pitcher's careers and doesn't have a clue how to manage a big league clubless than a minute ago via Twitter for iPhone 
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Rob Bowen
TheRobBowen
Well then. I'm not the smartest man in the world, but it's safe to say Bowen was not trying to be subtle with his comment. He actually followed that tweet up with several others critical of Billy Beane and his general philosophies. Mindi Back of CSN asked him what manager could find success under Beane, and Bowen responded by saying that it would at least require Beane leaving the manager alone and letting manage however he manages.
Ever since Moneyball, criticisms have been extensive against the A's general manager. One of the prominent ones surrounds his expressed belief that managers were not all that important. One has to wonder if his decision to fire a manager mid-season (a first for him) could mean a change in that philosophy is at hand. A's fans will be watching the decisions of Bob Melvin quite closely.