Good call, IMHO. He knows how Torre likes to manage, and played with a handful of the guys on the field in the championship years. This should be a good fit. And he'll be catching instructor too, and as Posada could tell you, he makes a pretty solid mentor.
But Stottlemyre? I'm not sure, given how unhappy he's been in the past couple years. Still, probably a better call than Neil Allen, and it's not as though they could get Guidry to leave the bayou.
I'm biased, because if you look around these boards I've said before Maddux is the greatest righthander in history. Age has taken it's toll yes, but Maddux has such a style where age doesn't make you drop massivly.