coordinators leave to be head coaches , even if it's a smaller school. Position coaches leave to be coordinators , that's the next step up in the pecking order. The only thing coach Allen did was pick good coaches for his staff . There will be people outside the IU program looking at IU as a great place to coach . Even though I hate to see coaches leave , I believe coach will fill those position with a very good replacements . Remember when we lost our OC last year , well how did that work out , pretty darn good . We lost our strength coach , and replaced him with one of the best strength coaches from the NFL. Good luck to those who move on , look forward to seeing who takes their place .