Dude, really. It takes both to make plays work. If a defense isn't fooled or confused or tentative, no amount of execution will fix that. Remember that 4 WRs running straight to defenders play from last week? No amount of execution would have helped to complete a pass, the defenders were in place and would have jumped any pass attempt. And before you say it's one play, there's another GIF from a different play, but it's the same play run at a different time with the same reaction from the defense, no chance regardless of execution. We ran that same play or ones very similar multiple times that game. It wasn't the execution that was the problem, it was the playcalling While it's true that you won't always fool a defense and they will have the right defense to defend the play. The more times that happens means that you need to rethink the playcalling because you are losing your advantage.