I'll tell you what a debacle is. A debacle is having a Top 15 (nationally) offense (which Wilson had twice) and not even getting a winning season out of it. The failure to win at least eight in 2015 was a disgrace, and it wasn't just on the defense. With a 25 point lead against Rutgers, for example, they had Sudfeld throwing dangerous passes from IU territory, two of which were picked and led to scores.
Wilson did some good things at IU, and he's a very good OC, but his HC skill set - - including in-game management - - left a lot to be desired. And the reason we went to back to back bowls was because a) Purdue's Hazel-led teams were horrible (and, even then, we barely beat them in 2016); and b) because we had a defense in 2016 (thank you, Tom Allen).
What is the point of your never-ending tirade and crusade against Tom Allen? He'll be here for a while, whether you like it (or him) or not. Deal with it, or find another team that'll give you some enjoyment.