Count former star running back among those who are skeptical of succeeding in the NFL. Jones-Drew even mentioned -- cover your eyes, Mariota fans -- when talking about Mariota's adjustment to the NFL. "Some first-rounders horrible situations," Jones-Drew told bleacherreport.com. "Some scouts will say that a player fits a system when he clearly doesn't. Mariota is a good example of that." Jones-Drew was with the when Gabbert arrived as Charvarius Ward Jersey a first-rounder in 2011 from Mi souri. Gabbert ran a spread offense at Mizzou. Oregon's spread isn't the same as the Tigers' spread, but Jones-Drew's point is Briason Mays Jersey that system "fits" are vital to a player's succe s. "It wasn't that Blaine was bad. It was that he was uncomfortable," Jones-Drew said. "You don't take Mark Zuckerberg and have him run a construction company. Blaine never adapted to the complicated pro offenses. "The thing with Mariota is that it will take a long time for him to adjust to the NFL. It will take years. He will have to go to the absolute perfect place. It won't take (Jameis) Winston as long." That echoes what basically everyone is saying about the two quarterbacks: Winston -- who guided a pro-style attack at Florida State -- is far more NFL-ready that Mariota. Heck, Mariota mentioned at the NFL that he had been practicing taking snaps from center. Think about that: a potential franchise-quarterback-to-be having to practice taking snaps form under center. Also remember that Mariota Nick Bosa Jersey didn't huddle, didn't call plays and didn't audibilize at Oregon. Yes, he was a transcendent college quarterback. And, yes, players can make the move from spread offenses to pro-style attacks. But there is a learning curve, and if Mariota ends up on the wrong team, that curve could take him off the proverbial Colton Mckivitz Jersey cliff.The comparison to Gabbert might be a bit much, though. While both ran spread offenses, there were numerous questions about Gabbert. There are fewer about Mariota, and no one questions Mariota's work ethic. Jones-Drew also talked about Winston's off-field troubles and how they actually could help him Chase Lucas Jersey deal with one fact of life in the NFL. "He's shown he can play at a high level while under a lot of scrutiny," Jones-Drew said. "People don't get how hard that is once you get in the NFL. I've seen guys crumble under the pre sure. He won't be one of those guys." Mike Huguenin can be reached at mike.huguenin@nfl.com. You also can follow him on Twitter .