Profootballtalk.com is basically a rumor mill, with things 25% right most of the time, but came across an interesting article reguarding the Ricky Williams situation:
The real question is whether Miami's sudden need for a running back would make the Colts willing to let James go now for value, in lieu of keeping him for one more season while his eyes are fixed on the possibility of going home.
Cole also identifies various backs whom the Dolphins might acquire via a trade, including Tony Hollings of the Texans, Najeh "Dookie" Davenport of the Packers, and Lamar Gordon of the Rams. Hollings is the most enticing of this trio; he was the Texans' second-round pick in last year's supplemental draft, and league sources have in the past verified that his ability justifies the lofty draft status. Still, his future in Houston has been clouded by the unlikely emergence of fellow 2003 rookie Domanick Davis.