Soup,
Your post did indeed make me wonder about the attrition rate under Tressel and then Heacock. I went to my files and pulled out game programs from 1999 and 2000, Tressel's last two years. Also, I found programs from Heacock's first two seasons, 2001 and 2002. Here were the results. Between 1999 and 2000, Tressel lost 15 kids that had eligibility remaining. Between 2001 and 2002, Heacock lost 21. This is not a comprehensive or scientific survey, but it does suggest that Wolford's losses are not unusual for a FCS program.