Mattingly dreams of managing in bigs:

Despite the presence of former big-league managers Mazzilli, Bowa, Tony Pena and Joe Kerrigan on the coaching staff, it is widely assumed that Mattingly will take over for Torre whenever he decides to hand over the reins. ...

With a job to do as the Yankees' first baseman, captain and face of the team, Mattingly would simply observe how his various managers conducted their business, dealt with players and handled the game.

None of them impressed Mattingly as much as Torre has during his tenure in New York.

Torre's the man. But, when the time comes, I do think Donnie would be a good choice. And having him be a coach under Torre like this is a great way to get him ready for it.