That UCLA quarterback Josh Rosen has all the raw physical talent to succeed at the next level is a question that’s not up for debate. But based on a simple comment made by an AFC executive, it appears NFL teams are concerned about Rosen’s off-the-field personality. “He’s the one I know the best — he’s got size, athletic tools, velocity,” the executive told Albert Breer of The MMQB. “He’s just a mess off the field and he’s coming off the injury. He needs to grow up, but the talent is off the charts.” This is something that will be heavily scrutinized in the next 11-plus months leading up to the 2018 NFL Draft. Rosen is brash. This is known. He is a guy who had no issue showing off his displeasure with Donald Trump with a “F– Trump” hat on the golf course last year. He’s also a kid that put a hot tub in his freshman dorm room and isn’t shy about saying whatever it is that’s on his mind — controversial or not. In a feature for Bleacher Report last year, he shocked people by saying, “The whole CTE thing is completely overblown.”