Definitely, but under the following circumstances-
1. A proper left back (Kolarov is bobbins). One that can defend as well as attack and preferably one that can get 5-10 goals a season from corners.
2. A creative central midfielder or the highest calibre (Fabregas / Modric or even a cheeky tilt at Wilshere)
3. Another 'Zabaleta' type player who can play competently across a number of roles (keep Zab though to)
4. A proper fox in the box 25 goals a season striker.
9 points isn't much to make up, considering United will be weakened by the impending OAP status of giggs and scholes.