MSU has always been a stubborn foe for OSU. And East Lansing is not a fun place to play either. Two years ago, in East Lansing, the highly favored Bucks had to hold on for a 17-16 win.
I'd have to say it's simply the pressure, and in the effort to get the win over a favored team, what's at stakes, and maybe trying to get a "monkey" off your back, it forces coaches to make rash/questionable decisions outside their norm. It unsettles them. Especially afterwards when they're saying "What was I thinking?" LOLJames Franklin reminds me right now of Lloyd Carr. Good coach, good recruiter, just seems to be lacking something against OSU (post Cooper years)