Not playing Darnold if he's even close to ready would be a cardinal sin. I can't see them not playing him unless he's completely not ready. We gain nothing by having Mccown play the entire season - start the season? Maybe. He's almost 40, if Darnold can gain valuable experience starting maybe half or more of the season, you don't leave him on the bench. You let him start and take his lumps for a year or two.