Perhaps the most revealing passage:
"Well the discussion today was if we were able to achieve the significant success that the stakeholders today felt was very achievable(emphasis added), we're talking about cutting 1.5 percent out of the rising cost of health care, about $2 trillion over the next decade," Sebelius explained. "So, that would achieve the kind of individualized savings of $2,500 per family."
In other words - we "feel like" we're going to save $2 trillion dollars, and that's all the evidence we need.