There's new blood at the top of Minnesota's best-known hospital and clinic chains -- Mayo, Park Nicollet and Allina.

The three CEOs share some similarities: All were picked from within. All succeed visionary leaders. And all will have to steer their organizations through some of the most challenging times in health care -- a period of rising bad debt, patients with ever-higher expectations, and reform at the state and federal levels…

John Noseworthy is the quintessential Mayo doc -- a true believer. "We have 59,000 employees and all come to work and do one thing: meet the needs of the patient," he said recently. But he's also a pragmatist, and he knows that even Mayo has to change with the times.

Star Tribune, by Chen May Yee, 1/31/2010

Tags: CEO, Mayo Clinic Arizona, Mayo Clinic Jacksonville, Mayo Clinic Rochester