I am surprised no one mentioned this..
but ...
This thread was started on the heels of Saban appearing on the Peyton and Eli MNF show. Great interview, they exchanged some banter, but there's also a spot where Eli actually visited Saban at Lake Tuscaloosa and went tubing with him.
You think that this is all coincidence?
Looks like Saban has a GREAT relationship with the family. And Peyton fawned quite a few times over how many players Saban has put into the league. Peyton even commented on how Saban has always been known as the defensive guru, but now he's cranked out Jalen, Tua, and Mac into the league, Peyton himself lauded Saban as the QB guru, QB-U, as it were.
This is extremely telling, IMO.
NFL Network doesn't allow aggregate embedding to their intellectual property (for this site, at least) so it'll say "not available" but if you click the "watch on YouTube" link, it'll take you to it.