Should Pitchers Call Their Own Pitches?

Recently, I've been reading a lot of Malcolm Gladwell of The New Yorker. One of his books, Blink, argues that the preconscious responses of specialists can be pretty good. One marriage counselor can predict whether your marriage will work from a 5-minute conversation (to 95% accuracy), but his accuracy slides lower as he talks to the couple more. Gladwell is not arguing for the validity of rash and wild predictions but finds authority in the instincts of well-trained individuals.

Amind the Cole Hamels fiasco, I began to consider one of the strategies in baseball, with Gladwell's observations in mind. Traditionally, the pitcher (picture the grizzled veteran, played by Kevin Costner) controls the pace and structure of a game by "calling" the throws made by the pitcher (picture the impetuous youth, played by Tim Robbins). It is suggested that the catcher has a better sense of the larger chess moves in the game (base runners, placement of fielders, etc.) and a less involved perspective (the pitcher is distracted by pitch counts, the mental game with the batters, etc.). The catcher can survey the entire playing field, which is also considered an advantage. But perhaps Gladwell's observations might construe it as the opposite? Could the catcher's elevated responsibilites actually obstruct the success of the team's defense by making the game less instinctive and more cerebral?

I would welcome any feedback, examples, or anything else on this. I'm still pitching the prospective idea around.