MELBOURNE midfielder Jack Viney has transformed himself into the club's most coachable and trusted player, leading coach Paul Roos to predict big things from the midfielder next year and beyond.

Viney enjoyed a tremendous 2015 campaign, averaging 22 possessions a game and ranking seventh in the League for average tackles.

He finished runner-up by a single vote in the club's best and fairest despite missing six games with a broken leg.

Roos said Viney's game suffered earlier in his career due to the 21-year-old's desire to improve too quickly – it prevented him from getting the most he could from his coaches.

But Roos praised his improved listening ability and said it had and would continue to reap rewards.

"There was a big transformation, particularly from an attitude point of view," Roos told

"He's a really driven young man and one of the things that he struggled with was listening. He really wanted to get ahead really quickly.

"But there has been a really big change and he’s acknowledged it, and he's transformed his game and he became our most coachable player and our best listener.

"[He's] probably become the most trusted player in the team in 2015.

"If he keeps that attitude, which I'm sure he will, he's going to be a very good player."