Washington, D.C. ? The two top salesmen for a $700 billion financial bailout are in for a grilling by Capitol Hill lawmakers just one week after the administration officially ditched the original strategy behind the rescue.

Federal Reserve Chairman Ben Bernanke and Treasury Secretary Henry Paulson are expected to provide greater insights into the shift when they testify today before the House Financial Services Committee.

Paulson, who is overseeing the bailout program for the Bush administration, changed course and announced last week that the government would not use any of the money to buy rotten mortgages and other bad assets from banks. That had been the centerpiece of the plan when Paulson and Bernanke originally pitched it to lawmakers.

Instead, Paulson said the department would focus on rolling out a capital injection program to pour $250 billion into banks in return for partial ownership stakes in them.