One thing is certain: They won't go to a six-man rotation to accommodate the 39-year-old left-hander, manager Joe Girardi said on Sunday.
"I should not say never, but no, no, no," Girardi said.
Pettitte will arrive in camp on Tuesday to throw his first bullpen session and figures to need a full seven weeks to get into big league game shape. Girardi said that the Yankees want to make sure Pettitte's lower half is strong and won't rush him, but it is envisioned that Pettitte will take a rotation spot when ready.
"That's something we all have to talk about, but we didn't sign him for him not to pitch here," Girardi said. "We signed him because we thought he could really help us, but you have to evaluate everything as it moves forward."