A move to England was intended to make him a talisman in his own right, but the World Cup winner has struggled to become a go-to man for the Gunners.
His inability to dictate proceedings was highlighted once again during a forgettable showing from both him and those around him in the Europa League final on Wednesday.
Arsenal slumped to a 4-1 defeat at the hands of domestic rivals Chelsea in a European showpiece, with Fabregas among those to question Ozil’s input on a game which raised familiar questions.
The ex-Gunners midfielder told BT Sport: “I think sometimes you just have it inside or you don’t have it.
“When he was at Real Madrid he was surrounded by top, top players and one of the best players in the history of the sport in Cristiano Ronaldo.
“I’m not taking anything away from Mesut, he played top football there, but once you step down a little bit, because we can all agree Real Madrid, Barcelona, Bayern Munich they are top three, you have to show yourself a little bit more because you don’t have the same quality around you.
“The club buys you to be the actual leader around the club.
“I don’t think Mesut has that in him to carry. I don’t train with him every day, but I don’t think he has it in him to be leader.”