Ibrox side Glasgow Rangers are second in the Scottish Premiership.
The Gers are second in the Scottish Premiership table after winning their last two games, but luck has played a big role in both victories.
Harry Forrester struck a 92nd-minute winner as Rangers beat Dundee 10 days ago, while Joe Dodoo struck twice in the final 10 minutes - including one in the dying moments - to give Warburton's side a 2-1 victoryat Partick on Saturday.
They were not the only times in which Rangers nicked a result at the death this season, and the former Brentford manager - who claimed last November that his interpretation of a Plan B was simply executing Plan A better - has been urged explore alternative gameplans.
McCann has now told the 55-year-old that he should take a leaf out of Pep Guardiola's book and adjust his style to fit the opposition, as the Spaniard did in Manchester City's win at Burnley this past weekend.
“It wouldn’t be as if he would be admitting defeat by changing tactics - it’s football," he said to The Glasgow Evening Times. "Pep Guardiola spoke about playing against Burnley and how he has to learn to deal with their up and at ‘em style.
“It wasn’t a negative, it was like a positive and that he would learn from it and change. There’s nothing wrong with having to change. It’s not like he’s bursting his philosophy. It’s finding a way of winning.
“Rangers fans won’t care if it’s not pleasing on the eye if they could start to bite into Celtic’s lead.”