One of the major arguments people like Megan McArdle use against the healthcare reform passed last year is that the cost-saving measures included in the plan won't work. People like Ezra Klein and Matt Yglesias say they will work, they hope.
This Politico article provides ammunition for the conservatives. Various interest groups and lobbyists are rising up against the Independent Payment Advisory Board. If one is a cynic, watch for the lobbyists to get legislation weakening it or killing it included in some big package of must-pass legislation.