Arsenal summer signing Kai Havertz has come in for heavy criticism for his disappointing performances, and has really struggled to make an impact in midfield. Havertz arrived to much scepticism in the summer, having spent three mostly underwhelming years at Chelsea, and a heavy transfer fee has not helped him as there is limited patience over his ability to deliver. Granit Xhaka departed after an excellent campaign last season, and Havertz arrived as an option to help fill the void left by him. However, he has failed to do so in several ways. It is still unclear what his best position is, as h…