The 2013 title winners have only known one boss at the Reds but despite the new era the Serbian defender is convinced it can be a smooth transition from one Glaswegian to another.
"When the gaffer decided to retire we were surprised. We knew he would retire in one or two years but everyone was shocked when it happened," he said.
"But players adapt quickly. They have a work ethic. They respect what the manager did at Everton. Obviously we want to win trophies. We are looking forward to working with him.
"I was excited to see the players in the first few days. They were pushing forward and playing well. They showed by their example they are looking forward to working with David.
"Always when you get a new manager the players increase their work. They want to show how good a player they are. David has worked in the Premier League for the last 10 to 12 years so he has an opinion on players but they still want to prove themselves.
"He can see in the first few days players working really hard to be ready. It is a good sign.
"To play for Manchester United, one of the biggest clubs in the world, is always special. Young or old it doesn't matter. We all have to stick together, work hard and help the manager to achieve what he wants."