Over the weekend, rumors boiled up that the Vikings would consider trading talented-but-sometimes-troubled wide receiver Percy Harvin. Things may get messier before they get prettier, too: Harvin is entering the final year of his contract and, according to Mike Florio of Pro Football Talk, is expected hold out of OTAs and training camp if he's not rewarded with a new deal. Harvin holding out wouldn't be shocking. There aren't many ways for players to try to force the hand of a team when they want a raise; holding out is an attempt to gain leverage. Sometimes it works, sometimes it doesn't. My CBSSports.com colleague Clark Judge actually agrees with the notion that the Vikings should send Harvin packing. And there's a legitimate argument for it, since Harvin's been a (figurative and literal) headache at times during his career and, perhaps more important, he's going to command crazy money at some point in the near future.