mesut ozil failed to deliver against chelsea despite a perfect opportunity .
cesc fabregas would have had a bigger impact at arsenal this season .
ozil showed poor technique when he had the chance to be a match winner .
he may be a juan sebastian veron , andriy shevchenko or fernando torres .
read more : brendan rodgers is ruining rickie lambert 's career .
read more : manchester united need to raid borussia dortmund .