Our new WR coach (Groh) would know a lot about Warmack from his time coaching at Bama.
If Warmack was there at 20 and Groh believes Warmack is all that I'm sure he'd be in Emery's ear to pull the trigger.
That Yahoo mock as a whole seems pretty reasonable although I have a very hard time believing three extremely average QBs (Smith, Barkley and Nassib) will go in the Top 10. I think it is much more likely the Cardinals in particular go OT in the 1st (not Barkley), and then wait for Glennon in the 2nd who is a much better fit for Bruce Ariens' offense. But having a couple of teams reach badly for QBs in the top half of the 1st is probably the only way a guy like Warmack is going to fall to us.