With impressive stats over the past 2 weeks, tOSU jumped to 5th from 11th in ESPN fpi ranks. These ranking are meant to statistically measure a team based on actual data from game drives, special teams, etc. (although I haven't seen the details I think it is similar to other efficiency ratings produced by other sites) I will enjoy if OSU jumps in to top 4 next week and watch ESPN explain it.
http://espn.go.com/college-football/statistics/teamratings/_/year/2014/key/20141019040000