Why all the "to do" about physician integration?

Physicians and their role in the delivery and cost of health care have been in the spotlight recently as the health care debate rages on. Much of these early discussions seemed to result from Atul Gawande’s article in the New Yorker called “The The Cost Conundrum, What a Texas town can teach us about health care” and his follow-up, “The Cost Conundrum Redux.” Gawande suggested that physician