Carragher wrote in the Daily Mail: "When playing Sir Alex Ferguson's teams, it was like 12 v 11 - and he was Manchester United's 12th man. Sir Alex alone was worth a minimum of 10 points a season to United, with his ability to intimidate and inspire.
"Let's put it another way: had he been Manchester City manager last season, the title would not have left the Etihad Stadium.
"Now David Moyes has to step into his place in the dug-out (and roaring along the touchline). Moyes must answer many questions, the main one being: can he show those who doubt him he has the special qualities to walk in Ferguson's shoes?"
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