My Untouchables
Berkman
Oswalt
Lidge (comment below)
Pence
Patton
Lee (only because he was just signed, sends back signal to future FAs)
Lidge recently made the list. In the past the Astros have always seemed to have an heir apparent to the closer role, from Wagner to Dotel to Lidge. It looked like Wheeler/Qualls might fit that "heir" role after Lidge, but recent results have shown that is NOT the case. So I would be more willing to pony up the cash to keep Lidge than I ever was for Wagner or Dotel. Until someone else comes along to show that "something" to be a closer, you keep a known.
With both Pence and Lee being LF types, it is hard to imagine both on the team for really long, without one showing significant defensive improvements. But, there have been some pretty bad defensive teams that have won before, just seems alot harder to do. And moving one to 1B and Berkman to RF, doesn't seem much better either.
We have seen that Berkman is essential to the teams offensive success this season. And we have seen that he needs help based on last season, so Berkman-Lee combo when both are hitting seems important.
Oswalt is there because EVERY team worth spit needs AT LEAST one Ace.
I think Patton is untouchable just because he seems like the real deal (although still developing) and he is a lefty. I think you let that ride out a little more and if he looks like another Hirsh, make the trade then.
I will end with saying, NOBODY is untouchable. If you are offering me 3 all-stars for 1, I think you have to make deals like that, but if you are offering me Santanna plus something.... Suddenly my untouchable list goes blank.