It's the position that's more important to the team—nay, the sport—than any other position in any other sport. They are often the face of the franchise.

That’s why there’s such a high premium on top-tier quarterbacks.

As usual, many teams that were less than satisfied with their quarterback play last year made moves to change their fortunes at that position. This is a list of the teams that made significant additions or suffered a significant loss at quarterback, and my take on whether they will sink or swim in 2010.

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