Ex-Manchester United midfielder Paul Scholes has been discussing his former club following last weekend's disappointing Premier League defeat to Leicester.
Writing in his column for The Independent, the 39-year-old said: "Last weekend showed that, for a number of our top clubs, nothing can be taken for granted."
"Nigel Pearson set his Leicester team up to attack United. He chose three centre-forwards, which tells you that he wanted to score goals. Jamie Vardy and David Nugent covered a hell of a lot of ground that day. As a team, Leicester dealt with the influence of Daley Blind. Against Queen’s Park Rangers the previous week he had been able to dictate the game. Not this time."
"Most of all, Leicester just never gave up. At 3-1 down to United there might have been some teams who would have chucked it in. But that is less and less common in the modern Premier League. You cannot afford to coast when you have the lead. Every point is fought for right to the very end. It is what makes the league the best in the world."
The Red Devils have picked up just five points in five matches this season, despite having already faced all three newly-promoted sides - Leicester, Burnley and Queens Park Rangers. It's fair to say Louis van Gaal's side have come undone too often against lesser Premier League sides and this could be put down to complacency, as Scholes suggests.
After an impressive pre-season the players had every right to be confident. During their tour of the USA, they dismantled the likes of AS Roma, Real Madrid and Liverpool on the path to lifting the International Champions Cup. However, the club have failed to adapt to the more competitive nature of the Premier League.
"These teams are fit and strong. But they have good quality too, and they never give up," the Englishman continued. "I have been critical of teams that have fallen short this season but this time I would like to give some credit to managers. Teams have outperformed bigger clubs on much bigger budgets."
Leicester City recorded a net spend of just £10 million during the summer transfer window, compared to the £122 million of Manchester United; a clear disparity. Nonetheless, Nigel Pearson's side gave their all, reaping the rewards as they emerged with all three points.