1) Never won back to back titles
People talk about Arsene Wenger as a legend of British football. His record in terms of trophies though isn’t that good. In fact over his time at Arsenal it is poor given that the club are regarded as a top club. He’s been at the club for 20 years and delivered just three league titles. That isn’t good enough. In that period he never won the coveted back to back titles that any great team wins. Jose Mourinho did this and Sir Alex Ferguson won three on the spin. This is what separates the good teams from the absolutely great. Regardless of a season unbeaten he never followed it up.

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