The "under-center stuff" Mariota referred to is among the adjustments he will eventually have to make as an NFL quarterback, coming from a shotgun offense at Oregon. It's a hurdle that's also coming for Baylor star Bryce Petty, who plays from the shotgun, as well. As a senior, Petty will look to quell scouting concerns about his shotgun background after the season. For Mariota, that time might or might not come so quickly. After opting to pass on this year's draft and return to Oregon, he will be a fourth-year junior this fall and has two years of college eligibility remaining. He could enter the NFL draft in either 2015 or 2016.