re: IU has fired their head coach. Tom Allen likely replacement

I don't think it's scheme OR talent. It's finding the right combination of the two

When Tom Allen goes to Indiana and they vastly improve in one year with the same players it points to coaching

When Alabama has a top D year in year out no matter who the D coordinator is it points to talent

If we trade schemes/coaching with Bama for a year then Bama would still have a better D because their talent is vastly superior. Trade players with Bama and we would have a better D because their (now our) talent is vastly superior.

But what makes Alabama the best is having superior talent in a good scheme that fits their talent