Racing PositionsInjuries mean chance for young players12YBrandon ChatmonRetooled O-line will anchor Sooners offense12YBrandon ChatmonState of the position: Tight end/fullback12YBrandon ChatmonSeveral needs remain for OU's 2014 class13YBrandon ChatmonPlacing the Sooners' roster in tiers13YJake TrotterCrimson Countdown: TE Sam Grant13YBrandon ChatmonSummer could be key for these Sooners13YBrandon ChatmonStates the Sooners should recruit harder13YBrandon ChatmonTight ends key to Sooners in 201313YJake TrotterOU spring takeaways: Winners and losers13YBrandon Chatmon