As of this season there are only 14 scholarship players who were offered and recruited by Spaz. They are:
Look at that list. There's not a lot of dead weight or wasted scholarships. In fact, 10 have contributed significantly the past four years for Addazio and Callinan, Gutapfel, Johnson, Kavalec, Willis and Wolford are all still starters.
Would it be nice to have a huge group of talented 5th year Seniors that Spaz had recruited? Sure. But the flipside of Spaz not using all his scholarships and many of his recruits bailing over the years, is that Addazio got to remake the team in his image. 71 scholarships are being used by Addazio recruits. That's 84% of the roster.
When you lose such lopsided games, talent is clearly an issue. However, I don't think talent is Addazio's major issue. And if the talent really is what is hoplding him back then Addazio only has himself to blame.