#4: The Italian's style of management
Arsene Wenger's intransigence regarding his tactics have been harming the Gunners for over a decade now. Even though Premier League has undergone substantial transformations regarding both the quality of play and the brand of football, the French gaffer seems adamant on changing his age-old methods.
It was in 2016 when Wenger decided a tactical modification was inevitable, abandoning his possession-oriented style of play. The changes to 3-4-3 and 3-5-2 setups have seen Arsenal pick up moderate success, though. The Gunners have been nevertheless disappointing in the Premier League.
Carlo Ancelotti, on the other hand, favours the Christmas tree formation of 4-3-2-1, with which he was incredibly successful at AC Milan. The Italian again proved his tactical prowess after winning the La Decima with Real Madrid using a modified 4-3-3 format.
Wenger and Ancelotti are top dogs in management. However, the Champions League and the domestic league is where the Italian has the upper hand over his French counterpart. Ancelotti's philosophy guarantees success in all competitions, compared to Wenger's limited domestic cup success.