"Ready"?- ready to do what? Ready to turn on the sadrists and to whack them, the harder the better? - doubt it; to whack the sunni triangle? - probably not, either.
I'd say "ready" means "ready, willing, and able" to restore and maintain civilized order in Iraq. In my opinion that will have to include putting ALL of the militias out of business.
Preferably, Sadr will die in the process...