There is a “big, hard job” to oversee at Old Trafford, says the ex-England international, with the reigning champions surging ahead of their rivals
Manchester United are “about a billion pounds” away from competing with Manchester City, says former Blues midfielder Steve McManaman.
Two fierce rivals have both invested heavily in their respective playing staffs over recent years.
City have found plenty of value, with back-to-back Premier League title triumphs and an historic domestic treble secured under the guidance of Pep Guardiola.
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Those at Old Trafford have found the going a little tougher, with the Red Devils still stuck in the rut they dropped into once Sir Alex Ferguson retired in 2013.