Last month, the Yankees announced who will be participating in Old-Timers' Day on June 17.
The roster includes several players making their first appearance at Old-Timers' Day: Jason Giambi, Aaron Boone, Nick Swisher and Andy Pettitte.
However, it's possible another press release might come out shortly, announcing Pettitte's new job, per the Boston Globe:
If Lance Berkman becomes the head coach at Rice University -- his alma mater -- could Andy Pettitte become the pitching coach? Very possible.
Pettitte and Berkman are long-time friends.