Exactly right. They know they aren't winning squat, so there is no point risking injury by coming back for a senior season.
Maybe when Miles is gone we can get Pete Carroll back in to the CFB scene and lead us to the promise land, Gruden can be his DC.
A little help: An why should facts stand in the way of a good bashing. The NFL Has A Major Underclassmen Problem And it's only getting bigger. Due to the collective bargaining agreement in 2011, college players are eager to enter the NFL as soon as possible. The influx is negatively impacting the prospects and current players, with no end in sight By Greg A. Bedard MOBILE, Ala. — The cries came from every corner in the NFL world: coaches, personnel executives and agents. There’s nothing here. … Worst group I’ve ever seen. They were talking about the players on display at the Senior Bowl, the premier pre-draft showcase on the field. They weren’t just whistling in Dixie. In the previous five drafts, there were an average of 10.2 Senior Bowl players draft in the first round—and no less than eight (2012). There was an average of 2.2 players taken in the top 15. After spending most of the week in Mobile, the consensus is there were maybe three first-round talents here, with a maximum of six. There is little doubt what is responsible for the drain on the experienced and mature player ascending into the draft: the new collective bargaining agreement that arrived after the 2011 lockout and was first in place for the ’12 draft. After having an average of 50.1 players declare for the draft from ’05 to ’11, the number has basically doubled under the new CBA: from 56 in ’11 to 65 in ’12, 73 in ’13 and 98 this year. As of right now, about 250 players will be selected in the NFL draft. You do the math.