We were struggling to finish our chances. We were firmly in our tempo. Cleverley had a lot to do with that.
I don't think it's tenuous at all. Again and again Cleverley was a step quicker than Wilshere. His first yellow was indisputably a direct result of that - Cleverley won the ball and used his quick feet to bring it cleanly into space, and Wilshere hacked him down out of frustration. He continued to be frustrated because Carrick and Cleverley were consistently winning that midfield battle. He got a warning for another frustrated foul and then, shortly after Cleverley had been sent off, made a third one and got his deserved red. But the pattern was set from very early on by his inability to get into the game.
Anderson gave us a bit of zest that had been missing, and a renewed forward drive. But the control over the game was already there, and had been from early on. Hence Arsenal's complete failure to have a single meaningful attack during Cleverley's time on the pitch. And regardless of the cause, Wilshere's sending off meant Ando spent most of his half hour playing against 10 men. And those ten men were already tired and pretty beaten. Arteta, particularly, seemed to have given up on having any kind of impact on the match. Nonetheless, Arsenal's most successful period of attack in the game was the last five or ten minutes, during which time it was Anderson, not Cleverley, who was on the pitch.
So I'm not sure where you've got the idea that we were more in control or in a better tempo once Anderson had come on, or that Anderson was better than Cleverley.