Both Mikel Arteta and Edu seem very aware of Arsenal’s pressing need to offload several players on the periphery of things this summer. In fact, Arsenal’s transfer policy is now to sell before they buy in the remaining six weeks of the window – hoping to replace those not getting minutes with high-calibre alternatives. That being said, Arsenal are willing to make an exception for Riccardo Calafiori, who they would buy before someone like Jakub Kiwior or Oleksandr Zinchenko left. But otherwise, when chasing the likes of Nico Williams or Mikel Merino, Edu and his team will try to offload players…