I'm back. Somebody is running out to pick up my prescriptions.
If you're going to call three straight years of 4+ YPC part of a decline, that's -- I guess -- technically accurate, but doesn't tell the whole story. I'd be awfully hesitant to call a guy a JAG when he's toting the rock for 4+.
In his first three seasons in which he rushed for over one thousand yards, guy actually toted the rock for an average of 1250-1300 yards from scrimmage, solely on the ground.
Then comes the decline -- the two seasons of 3.7 and 3.5 per carry, the latter of which he was not the starter in Dallas and received minimal work behind top-five overall pick Elliott, and the former of which saw a coaching change and an RBBC with Matt Jones. Morris isn't a JAG, he's started everywhere he's been (he started all sixteen in Washington in 2015), unless it's behind an MVP candidate and a guy considered one of the best runners of his generation in Zeke.
JAG is a tough label to pin on this guy. He's no burner, that's for sure. But he's not a bad back. To call him bad is extremely short-sighted, IMO. Why not let this all come out in the wash and we'll see who wins the job instead of back-and-forths about changes in coaching and styles (he's back with Shanahan, who got him his first three thousand+ seasons) and lines and even teams.
It's impossible to predict. But JAG is a strong term, and I'd advise against using for a guy who has rushed for the numbers he's capable of putting up.