The central defender, who made his comeback from injury as a substitute during the Emirates FA Cup tie against Brighton & Hove Albion last weekend, has been the first player speaking following the arrival of Michael Carrick as head coach.
Having already worked under Carrick previously, Maguire knows the former midfielder's qualities well but has been pleased with how things are already shaping up under the new coaching team, with the 12:30 GMT kick-off at Old Trafford rapidly approaching.
"Yeah, I'm really impressed," he told Sky Sports. "Obviously, I knew Carras from before and I spoke highly of him.