Hargreaves in that one season was important because the role he was filling allowed the forwards and fullbacks to attack. Carrick couldn't do that role and that is the role that needs filling in a team with a manager who plays the high press. We already have Pogba as the deep playmaker and need someone to do the leg work next to him and advance play. And how on earth was Hargreaves a utility player when we'd forked out a considerable sum to sign him from Bayern where he won the champions league.Pogba gets to be as good as he is right now because of Matic. And no, Hargraeves was not more important than Carrick. Hargraeves was a utility player who filled in at RB, RW and midfield when needed. Saying he was more important than Carrick would be like saying O'Shea was more important than Scholes...
Pirlo joined Juve after his stock had fallen and was a rejuvenated player playing next to Arturo Vidal who allowed both Pirlo and Pogba to express themselves due to his monster capability in defensive transition.
Name me one team that plays a high press and doesn't have a player that has mobility in defensive transition? Even Ajax paired Schone with Frenkie de Jong to provide the balance in midfield.
We need a Roy Keane or Vidal type in the system Ole is implementing because it can't be implemented to it's full potential with Matic because he isn't anywhere close to either defensively. If you think Matic is gonna be the answer then he will be for the remaining games due to the opposition being a bit crap but the rude awakening will arrive by next season and this thread will be very active.