The former midfielder says new boss Louis van Gaal will prosper in the job but thinks there will need to be a few more new faces at the club if the Dutchman decides to continue with the formation he used for their opening pre-season friendly on Wednesday.
Van Gaal employed a 3-5-2 system in his first match in charge which yielded a 7-0 victory over LA Galaxy at the Rose Bowl in Pasadena.
And Sharpe told Sky Sports News: “It was very much a Dutch style of football. It can be very offensive but also safe if they need to be defensive.
“But to play that formation there will be a few changes over the summer – and most probably defensively.
“If he’s going to play three centre-halves, then we may need another centre-half or two.
“(Chris) Smalling, (Jonny) Evans, (Phil) Jones are all good players but they probably need a leader or captain in there to shepherd them.
“And there will probably be another midfielder too coming in.”
As for the striking options, Sharpe added: “They have a few too many number 10s – (Juan) Mata, (Wayne) Rooney, (Shinji) Kagawa – and (Adnan) Januzaj can also play there. But he’ll have a look and sort it out.
“He won’t suffer fools, he’ll bring in new ideas, be a disciplinarian, he’ll have strong views and won’t be easily swayed from those.”
Sharpe also feels that not being in the Champions League this season could be beneficial for the Red Devils, saying: “Being out of Europe and not having hangovers when you can struggle the weekend after having European away games – they certainly don’t have that problem.
“So they can keep themselves fit and be properly rested. That’ll be an advantage not having those midweek games.”Sharpe, now 43, enjoyed an eight-year stint at Old Trafford during which he collected three Premier League medals, participated in two victorious Wembley finals and played all 90 minutes of their 2-1 triumph over Barcelona in the final of the 1991 European Cup Winners’ Cup.