Calculating the percentage of lettermen returning only tells the small part of the story when examining experience. And in many cases, what story it tells can reveal very little. A reserve that only plays in mop-up time might letter, but whether he returns might make no difference on the outlook of a team.
That said, this chart bodes well for West Virginia, which has had issues with its depth since joining the Big 12. Dana Holgorsen has said this will be his deepest and most complete team yet, and this chart certainly supports that notion.
Conversely, this is yet another chart that suggests Oklahoma State coach Mike Gundy and his staff have their work cut out this fall. The Cowboys have the fewest returning starters, least percentage of tackles coming back, and now the fewest returning letterman. If the Cowboys are competitive this season, they could be an absolute load in 2015 with the number of players they’ll have coming back.