One big difference between him and Ole, in my opinion, is that Ole has been trying to change the mental fragility and culture, instilled by previous managers, first, whereas Arteta is just tampering with personel and tactics. His senior players, who have been at the club 5+ years, among others, are Hacker, Bellerin, Holding, Mustafi, and they are surrounded by kids. Auba, Leno are good enough, Lacazette is hit and miss, but always puts a shift in, and I admit, I thought Willian will push them closer to top 4, but they seem to have crumbled mentallymassively and their results just yo-yo between delirium and depression.