Miami Dolphins: The Dolphins have two issues at backup QB. They will have a difficult decision to make unless they keep four quarterbacks or switch Pat White to another position. White, the 44th overall pick last year, hasn't developed. The presence of Tyler Thigpen, a former Kansas City Chiefs starter, probably will force a move. Respected veteran Chad Pennington is considered the third-stringer while he continues his recovery from shoulder surgery. But if something goes wrong with starter Chad Henne, it's hard to imagine coach Tony Sparano opting for Thigpen or White ahead of Pennington.