Yea. I've heard this multiple times about JDM helping out the other players. I think I've read it and it's also been talked about on the broadcast.
He said that during his time in Detroit he was the person asking the elder players how to be a better batter, and now he has just kind of filling that role in Boston where other players come to him for assistance.
They use to talk about Pedey doing this a lot though also.