The phrase "better the devil you know" could prove to be wise words as David Moyes starts to dip his feet into the transfer market for the first time as United manager.
Plenty has been made about a move for Leighton Baines, but there are others that may come as a surprise to United fans.
Here are five potential targets for Moyes...
United supporters will be well aware of the attributes Tim Howard possesses following his four-year spell at Old Trafford.
Howard was slightly unlucky to leave when replaced by Edwin van der Sar just one year after signing a new contract.
With question marks still surrounding David de Gea despite his improved recent performances, Howard could be a useful addition to the squad and would mount a serious challenge to gaining the number one jersey.
Whether Howard would have the desire to return as a potential number two is another question entirely.
It remains to be seen how much faith David Moyes has in the Spanish international. It's conceivable he could be sold in order to raise more transfer funds leaving the path clear for the 34-year-old's return.
Seamus Coleman maybe a slightly peculiar choice in this list, but there is method to the madness.
Moyes is a huge fan of the Ireland international and has been a consistent performer over the past three seasons.
He signed a four-year deal in November 2010 and then another five-and-a-half-year deal just 12 months later.
The 24-year-old is as versatile as they come and is equally comfortable at right-back or in midfield.
With Nani and Antonio Valencia having disappointing campaigns, the addition of Coleman would strengthen the squad in an area they have struggled.
Coleman wouldn't be a first-choice starter, but could be extremely useful if Moyes chooses to employ the wing-back system that works so well in Europe.
He may not be with Everton anymore, but the addition of Jack Rodwell could prove a masterstroke by Moyes.
His immediate future is very uncertain at the Eastlands following a difficult season mired by injury.
With his current stock low and City assured of new additions, Rodwell could well be the odd man out in what is already a congested midfield.
If the 22-year-old can prove his fitness, don't be surprised if Moyes makes several enquiries about the youngster's availability.
With Paul Scholes retired, the England international could be a likely candidate for replacement.
Much has been made about a potential move for Baines (Daily Mail) and quite rightly so.
With Patrice Evra not getting any younger, the left-back will be a welcome addition should United meet Everton's valuation of their most cherished asset.
Baines might have to initially share time with the French captain, but Moyes will be only too aware of the attacking dimension he could bring to the left hand side.
It's also conceivable the 28-year-old could play in the same eleven should the new manager decide to deploy the England international in a midfield role.
14 goals and 15 assists in the EPL over the last three years makes Baines a valuable commodity should he make the switch to Old Trafford.
Fellaini is quite rightly being reported as Moyes' number one target. (via Daily Mirror)
The Belgian international is not everyone's cup of tea, but his record at Goodison over the last five years has been exceptional.
With United devoid of any real attacking threat from midfield this season, the 25-year-old could provide the perfect addition should United meet the asking price.
Fellaini has since come out saying he is happy at Everton, (Sky Sports) but the lure of Champions League football and a link up with his old boss could yet prove too much to turn down.