The league leaders have been happy to sit back so far this January, content that the squad that has taken them clear in the league will be enough to see them through to the summer, but should they get into the market in the next couple of weeks to guarantee success?
Given that they are seven points clear in the Premier League, and comfortably topped their Champions League group, Manchester United have every reason to be happy with the squad they have used so far this season. Add in the fact that key men like Nemanja Vidic are getting back to full fitness and they would certainly be justified in not making any signings this January.
However given some of the names that are available, and the worries that persist in their defence, should they dip into the market this January?
It's often true that making moves in January can lead to a club hugely overpaying for players who struggle to settle in the second half of the season. However this January there are plenty of bargains available, and not simply for unsettled and mediocre players, there are real top class options that could be tempted to Old Trafford if Ferguson saw fit.
Wesley Sneijder is the first name that springs to mind, with the Dutch international put on the market for less than £10 million by Inter, and happy to take a substantial pay cut to leave Italy. United were very keen on spending over £30 million on Sneijder in the past, and even if he has had some time out of the game, the midfielder is still only 28 and a quality player who was unlucky not to win the Balon d'Or as recently as 2010.
Manchester United do have a lot of attacking options so might not consider Sneijder a worthwhile purchase, but there are also defensive midfielders available at great prices. Moussa Sissoko can leave Toulouse for £3.5 million or agree a free move in the summer now, Mohamed Diame has a £3.5 million release clause and even Yann M'Vila, for all his off the pitch hassle, looks a bargain at £8 million. You could see one of these players making a real difference as United face off against Europe's elite in the later stages of the Champions League.
In defence, at £4 million Vegard Forren would be an excellent option as back up to United's centre halfs, and would likely favour a move to Old Trafford compared to anywhere else.
Manchester United could do nothing this month and end up strolling to the Premier League title, but picking up one or two of the players above would improve their squad significantly and at a relatively cheap price, it might be worth ensuring they don't let their rivals snap up all the good deals.