This is not totally accurate, because I rounded a little bit and some teams still have bowl games to play.
The correlation coefficient (r) is .5780511132 when comparing the averaged amount of average stars from the classes of 2007 to 2011 to the total number of wins from 2008 to 2011.
My calculations do NOT show how one or two recruiting classes affect wins and losses, but rather how the classes of 2007 to 2011 affect the wins and losses from 2007 to 2011. If I wanted to show how the recruiting classes affected wins and losses by showing how their teams did when they were seniors, I would have compared the (x) average stars of year X to (y) the wins in year X+4
B1G Rankings.jpg