The Majority Leader doesn't have the power to force anything through the Senate. The Senate doesn't work like the House. Senate Rules make it very difficult for any one Senator, even a Majority Leader, to get things done.
Frist had only 51 Republicans in the last Congress, and at least three weren't about to go "nucular" (the Maine gals and Chafee). Even with Zell, that's at least one short. It's not Frist's fault he didn't have the votes!
He said last year he needed three more Senators to break any filibuster. He got four more. Let's see how this plays out.
Ahh..the 2 girls and the girlie man