Hasn't Bo made a 4-year pledge or something like that where he has committed to honoring every scholarship for 4 years?
Most of the Big 10 is now 4-year scholarships.
Penn State, Michigan, Michigan State, Iowa, Wisconsin, Northwestern and Illinois confirmed to ESPN.com that they have given out four-year scholarships to this class. Ohio State and Nebraska also confirmed on signing day that they are giving out scholarships that no longer have to be renewed annually. Purdue, Indiana and Minnesota are still awarding one-year renewable grants.
http://espn.go.com/college-football/story/_/id/7528614/some-big-ten-offering-4-year-scholarships