Agent Alan Hendricks told The Post's George King on Thursday that no firm plans had been made by either Andy Pettitte or Roger Clemens whether to play in 2007 or whether they want to stay home in Houston if they do return. Pettitte could become an affordable alternative to Barry Zito. However, Astros GM Tim Purpura said by phone, "my guess is [Pettitte] will pitch again. That was not said to me by [agents] Alan or Randy [Hendricks], but it is just a feeling I had at the end of the year. Andy doesn't seem to be the kind of guy who would walk away from the game when he was still pitching so well."