[WaPo] ...Unlike Walensky — an infectious-disease doctor who had never held a government leadership role — Cohen would arrive at the CDC with considerable experience at the federal and state levels. She served in the Obama administration as a senior official at the Centers for Medicare and Medicaid Services (CMS), where she helped oversee federal health insurance programs that provided health coverage to more than 140 million people. She later served as North Carolina’s health secretary for nearly five years.......Cohen also has close ties to several senior Biden officials. As a young physician, she worked with Surgeon General Vivek H. Murthy to co-found Doctors for Obama, a group that initially campaigned for Barack Obama in 2008 and later broadened its focus, under the new name Doctors for America, to champion the Affordable Care Act, Obama’s signature health law....
Makes you wonder if they were hoping Walensky would leave earlier (article from 30 Nov 21):
Related: Head of North Carolina health department stepping down
