Jurgen Klopp (Borussia Dortmund)
Despite United reportedly making the highly rated German their first choice to replace Moyes earlier this week, Klopp has since come out to publicly rule himself out of the running for the position, claiming to be content in his current role in the Ruhr Valley.
However, there must have been some doubts as to whether United would have been that willing to replace Moyes with such a similar manager in Klopp in any case as the club reportedly go in search of the big-name trainer to get them back to where they belong next season.