Robert Griffin- the time to buy studs is always after a major injury. The public tends to dramatically overprice injury risk- witness Jamaal Charles, Adrian Peterson, Tom Brady, Wes Welker, etc. Tony Romo- buy-low hall of famer. On a ppg basis, he's basically Peyton Manning, and has been for 6 years, but people rarely price him as a top-10 QB.Ryan Tannehill- when it comes to backup QBs, I want no part of low-upside guys like Dalton, Cutler, Bradford, or Flacco... but I love me some high-ceiling flyers. Alfred Morris / Stevan Ridley- people question their job security. People shouldn't. Demarco Murray / Ryan Mathews- injury buys, although Mathews' collarbones worry me some. Percy Harvin- injury buyWes Welker- if he can be had for WR20 prices, I like it. Either he's back in New England, or someone pays him big money with the intention of featuring him. Either way, he's a great add for a contender. Andre Johnson also fits the mold if people are worried about his age. Vincent Jackson- what does the guy have to do to get respect? In his last 4 full seasons, he's finished 12th, 10th, 10th, and 6th.Greg Olsen- outside of their respective career years, he's essentially scored identical to Witten and Vernon for a fraction of the cost. Low-upside, but cheap as hell. Dwayne Allen- my pick for "what the heck" high-upside gamble. Don't know where he's valued, but he's a great speculative add. Jermichael Finley- again, upside is the name of the game. San Francisco / Denver / Seattle / Houston- in a lot of leagues, defenses (even good defenses) can be had cheaply (a rookie 2nd, perhaps). These four have so much young talent that I'd be thrilled to rely on them for years to come.