I hated the trick play when they first ran it but after watching the game again I noticed a couple of things. First, the Eagles Maddox took a huge gamble shooting in on Dak on that play. I have never seen any defender read that so quickly and make such a sprint into the backfield. But Dak had Gallup wide open in the seam and if he had gotten the ball off to Gallup it would have been a TD because there was no one in front of him.
Something they did on that play must have tipped off the Eagles safety. Part of those plays, to be successful, is selling it to the defense. The defense has to be convinced that it was an end around. There is no way the safety from where he was positioned could have seen Turpin stop and throw the ball to Dak, so it had to be something he saw from Dak. I have not seen the Cowboys fool many teams when they run those trick plays. It has to be in their execution. But Moore insists on running them anyway, despite the fact the Cowboys have been moving the ball really well and those plays have rarely been successful for Dallas.
I wish he would throw those plays away or at least work harder on the execution if he insists on running them.