Rangers look set to return to the Premiership for next season.
Sutton said: “I’m looking to judge the Ibrox side over a 38-game programme next season and, with the current squad, they look mid-table. I’ve said they could possibly beat Celtic in a one-off tie but not over 38 games. Nor Aberdeen and nor Hearts for that matter.”
Rangers are set to take on Celtic in the Scottish Cup semi-final next month, and having demolished Dundee in the quarter-final, many fans believe the Gers will match up with their great rivals.
Their squad looks to be in much better form than Ronny Deila’s team, and few would predict that Celtic will blow Rangers away.
However, that is just in a one-off game, and the real challenge for Mark Warburton will come next season.
The Gers look as if they are to be promoted this season, and then they will face an entire league campaign against the Hoops.
Sutton does not believe that Rangers will be able to match up against Celtic - or even Aberdeen and Hearts - over a whole league campaign.
Form goes out the window over an entire season, and success simply comes down to who has the better squad.
For all the talent in the Rangers team, Deila can call upon the best goalscorer in Scotland - Leigh Griffiths - and a host of international players with a wealth of experience of winning the Premiership title.
It looks like it will be a successful season this year at Ibrox, but when they are back in the Premiership, more success might have to wait until the Gers can realistically match Celtic.