We don't have to "tank" next season or any other to get Arch Manning. All we have to do is make whichever team is in position to draft him a trade offer they can't refuse. We traded Herschel Walker to Minnesota along with a few other shrewd deals and draft picks and built a juggernaut. But, since we don't have a Jimmy Johnson to help Jerry pull off a mega trade 2.0, Jerry would have to hire (highly knowledgeable consultants), oh... let's call them 'special assistants to the GM' and pay them well to assist him in constructing a package (+ $$$$$$$) to acquire that pick.
Likely? Who knows. It's Jerryworld. But, not entirely out of the realm of possibility.
As for Nick Saban, Cam doesn't have enough Play-Doh to stretch that far.