life and run around and throw passes he hadn't been able to throw before or since? Kid played out of his mind. Tip your cap to him, but it's not repeatable week after week.
As for Gray, he's playing with an injured shoulder and, as has been mentioned by a few analysts who break down film, he's being asked to play to his weaknesses instead of his strengths so far this year. He's not the fastest guy in the world, but he is physical, and they have him trying to run with WR's instead of being physical with them at the LOS. He's going to lose those battles against fast WR's 99% of the time.
His shoulder injury may be the reason they aren't having him press guys but asking him to try to run with the guys he's been against so far is asinine.