Here's your source on a "Russian Blitzkrieg" being the opinion of the Russian political classes, and an ex-Army Colonel trying to pour water on it - _before_ the war started.
About the author: Mikhail Mikhailovich Khodarenok - ex-head of the group of the 1st direction of the 1st directorate of the Main Operational Directorate of the General Staff of the RF Armed Forces, Colonel
About the author: Mikhail Mikhailovich Khodarenok - ex-head of the group of the 1st direction of the 1st directorate of the Main Operational Directorate of the General Staff of the RF Armed Forces, Colonel
https://nvo-ng-ru.translate.goog/realty/2022-02-03/3_1175_do...