CDC Director Rochelle Walensky claims that she didn't know about variants or waning immunity

In this video, Rochelle Walensky, director of CDC, claims on March 9, 2022 at Washington University at St. Louis, that nobody in CDC questioned the misleading COVID vaccine hype that they were peddling to the public.

This suggests that under Walensky's leadership, CDC was inherently and thoroughly undisciplined, uncritical, and unscientific.