Impending free agent Reggie Bush told reporters when the season ended that he hoped to re-sign with the Miami Dolphins in part because "there's unfinished business."

He shouldn't get those hopes up too high. According to CBSSports.com's Jason La Canfora, it's "highly unlikely" that Bush will stay with the Dolphins under a new contract.

General manager Jeff Ireland has invested early-round draft picks in Daniel Thomas and Lamar Miller the past two years. With left tackle Jake Long, cornerback Sean Smith, and wide receiver Brian Hartline also due to hit free agency, it doesn't make sense to invest heavily in an aging running back.

While the Dolphins are expected to make Bush a cursory "team-friendly" offer, the smart money is on the versatile back signing a short-term deal with a contender. Turning 28 in March, Bush is a long shot for a final mega contract even after averaging more than 1,000 rushing yards in two seasons with the Dolphins.