At least a two-legged stool
From the Washington Post write-up of Obama's meeting with congressional leaders earlier today:
Obama told the group: "The recovery package that we're passing is only going to be one leg in at least a three-legged stool." He said it has to be "part and parcel of a reform package" aimed at ensuring transparency and accountability in the way taxpayer dollars are managed as part of the stimulus effort.
By my count, stimulus bill + reform package = a stool with two legs. (Or does a reform bill ensuring both transparency and accountability count twice?) Or is the third leg a surprise, to be followed by other potential surprise legs?