Since taking the Vincente Calderon hotseat in December 2011, Diego Simeone has successfully restored Atletico Madrid to their former glories.
Under the Argentine’s leadership, the Spanish capital outfit have claimed a Copa del Rey, Europa League title and European Super Cup over the last three campaigns.
This term, the 43 year-old has charged his side with the task of breaking Barcelona and Real Madrid’s duopoly at the top of the La Liga table, and a point ahead of the Nou Camp club with only six fixtures remaining, Atleti could claim their first league title since 1996.
The Mattress Makers were also the first club to escape the Champions League’s group stages this term, and are regarded as the competition’s dark horses.
Simeone’s feats are made all the more impressive by the fact he’s had to deal with Atletico’s almighty financial debts, which has resultantly seen the club’s most coveted stars leave on an annual basis, most notably Radamel Falcao last summer.
The retired midfielder comes highly-rated from his playing days too, being a former La Liga and Serie A winner and an Argentina centurion.
But Simeone’s philosophy won’t have too many fans amongst the Old Trafford faithful; the South American favours aggressive, physical football and ruthless defensive organisation, with clean sheets often taking priority.
Historically, Manchester United have always been a far more expansive side, but securing Simeone could allow the Red Devils unique access to long-term transfer targets Diego Costa, Felipe Luis and Koke.