Arsenal’s squad underwent a significant overhaul in the summer – Edu executed his plan to replace players on the periphery of things with high-calibre alternatives. Raheem Sterling effectively replaced Reiss Nelson for a season at Arsenal, and Mikel Merino became Emile Smith Rowe’s permanent alternative. That’s not to say that the players Arsenal sold won’t be missed, but the Gunners made some difficult decisions and will soon reap the rewards. Of course, there were a few stones left unturned at the Emirates Stadium, and Mikel Arteta didn’t end up signing a new striker. Arsenal wanted Benjamin…