The delay until a possible mid-July start is not regarded as a deal-breaker and United believe they are already in a strong position transfer-wise because of several months of work behind the scenes involving Woodward, Moyes and their network of agents and scouting staff. Cavani would cost up to £60m, breaking United's transfer record, and it might need about £40m if they are to stand any chance of succeeding where they failed with Fábregas last summer.
Again, the deal is highly complicated because of the politics of Barcelona selling one of their local players and
Fábregas's apparent reluctance to rock the boat with the club that has been such an important part of his life. However, United's information is that it is negotiable and, as long as that is the case, they will press ahead to try to see whether Fábregas is as unsettled as they have been informed.
Cavani would suit Woodward's ambitions to bring in one of the sport's modern superstars but, equally, there is a recognition behind the scenes that the more urgent need is to strengthen the team's midfield and defence.
The club have reluctantly accepted that Porto's Eliaquim Mangala will end up at Manchester City but other players in that position have been identified to replace
the departing Nemanja Vidic and Rio Ferdinand.
A £30m deal for Luke Shaw is likely to mean Patrice Evra leaving but United consider the Frenchman such an influential member of the squad there is an option for him to sign a year-long contract extension. "He is almost as important in the dressing room as Ryan Giggs," one source said.
United have been working on their recruitment programme since the turn of the year and there is more of an understanding this time that it is important to have contingency plans in place in case deals fall through. Behind the scenes, for example, it has been pointed out that Sir Alex Ferguson thought he had transfers arranged for Karim Benzema, Alexis Sánchez
and Lucas Moura in recent years. The problem has sometimes been that there has not been a second or even third choice identified. That will not be the case this summer.
There have been enquiries about Nani, Shinji Kagawa and Javier Hernández and United have to decide who they let go. The recent publicity surrounding
Danny Welbeck's apparent unhappiness is not being regarded with great alarm and, potentially, is part of a strategy on the striker's part to be given a new contract, two years from the end of his current deal.