I have been saying that for a while now the leafs need a legit vet to go with Matthews to help him. Nash is the perfect guy if you ask me for a few reasons. First and foremost he can keep up with Matthews. Last thing we want is a guy with not much foot speed. Secondly he plays strictly wing keeping Matthews in the middle of the ice. Third he is another big body and can also play the down low and cycle game with Matthews. Fourth he was a legit top flight player when we played with tones of skill that's what Matthews needs to learn from , legit top 3 Forwards when they were in their prime. Last but not least Nash was a top pick just like Matthews, he understands the pressure and what it means to be number 1 perfect mentor.
With all that said, I don't think NYR will be moving Nash. They are trying to win a cup and moving Nash wont help with that. 2 years from now when Nash is a UFA I don't think the leafs would have much interest so I cant see that happening.
One other name I would consider is Jordan Staal. He would help Matthews out on the D-side of the puck