Sky News. Manchester United and Mauricio Pochettino have agreed a deal for him to take over as head coach with the team in the Premier League's relegation zone. Pochettino is expected to sign a two-and-half-year contract at Old Trafford,. MAURICIO POCHETTINO has agreed to become the new Manchester United manager. The Argentine emerged as the favourite to take over at Old Trafford following the sacking of Michael Carrick..