Would, and should, the Giants really draft Saquon Barkley No. 2 overall?

Saquon BarkleySaquon Barkley is a wondrous talent, even Dave Gettleman’s mom could tell us that. Fifteen or 20 years down the road he might even meet Gettleman’s “gold jacket” test, the Hall of Fame caliber player standard the New York Giants general manager says he is applying to the No. 2 overall pick in the 2018 NFL Draft.

Barkley could be the centerpiece of the Giants’ revival, maybe even the new face of the NFL. Maybe he turns out to be the next Trent Richardson. Maybe he turns out to be really good, but not good enough to lift the Giants out of their malaise. Running backs don’t often do that.

All of that said it could — no, probably would — be a mistake for the Giants to select the…