For one, Mathieu's only issues were related to drug use, and he underwent four weeks of rehab under John Lucas before re-enrolling as a student at LSU. Questions about Green-Beckham are not only drug-related but now include violence, as well, and it's safe to say the 6-foot-6, 225-pound star won't be re-enrolling at Missouri. Even from a football standpoint, Mathieu had a far stronger body of work at the college level, having starred for two full seasons at LSU in 2010 and 2011. Green-Beckham's freshman year in 2012 was short on production, although he was among the SEC's top receivers last year with 883 receiving yards.