Just for fun, I pulled up the announcements of the 2003 and 2004 ISU recruiting classes. As votb can attest, my memory ain't what it used to be, so I may be off a bit remembering who stuck around to finish their eligibility from those classes. If so, feel free to correct me. Anyway, from 2003, here are the kids who played considerably and, I think, completed their eligibility at ISU:
2003
Josh Barnett, Kenyon Blue, D.J. Clark, Ken Cornist, Jermaine Horn, Marcell Lagrone, Dustin Schroader, Evan Smith, Eddie Thompson and David Tongolei. (Nice class, eh? The all-time leading rusher AND receiver, and Kenyon Blue, all-conference DJ Clark and a Green Bay Packer (Evan Smith) to boot!) But...
The kids from that class who did NOT finish their eligibility at ISU (again, my memory is fuzzy, so correct me) included:
Tyrus Beckwith, Eric Bullen, Devin Clark, Ryan Hunt, Josh Galloway, Luc Martin, Bruce Minnett, John Morales, Todd Parker, Jimmy Recourt, Chris Ruiz, Ryan Slack, Joseph Strayhand, Morris Wooten.
Bottom line: 10 completed their eligiblity here, 14 did not. Retention rate: 42 percent.
2004
Stayed: Chris Boblit, Terrance Calloway, Michael Harris, Mark Hetherington, Kyle McQuown, Anthony Melvin, Shawn Oram, Xavier Simms, Jon Winn.
Left: Keola Asuega, Ivin Clark, Davin Garrett, Kinte Haynes, Ruben Jackson, Chris Seals, Hunter Sims, Courtney Smith, Roman Ybarra.
Bottom line: 9 stayed, 9 left. Retention rate: 50 percent.
Over two years: 19 stayed, 23 left early. Retention rate: 48 percent.
I haven't done the research, but that doesn't strike me as being all that unusual for the Lewis recruiting classes. I don't know how it compares to Coach Z's first three classes, I'm sure Cub has done the math. But basically, if you can bring quality players, kids who can make an impact, like that Thompson-Barnett-Smith-Blue-Clark class, you can sustain some losses. Heck, Boise State has a senior class of 5 kids this year, and they seem to be doing okay. The key is getting impact players at key positions, and then filling in around them.
And yes, losing kids can hurt your APR and you can lose some scholarships. Weber State got hit, I think, with three lost schollies. But when you bring in kids like Cameron Higgins, Tim Toone and Trevyn Smith -- again, impact players at key positions, you can sustain some losses and still win.