True for 1941 and most of 1942. Not 1943 onwards.
The Soviet General Staff Supreme Command (Stavka) met in April 1940 to review the lessons of the Finnish campaign and recommended reforms in terms of military command structures (reduced role for comisasars, promotion through military excellence etc), tactics (more artilary and much better combined arms deployment) and equipment (arms, clothing) and logistics.
The conclusion was that Russia MUST avoid war with Germany till mid to late 1942 - even though they knew war was inevitable.
The rapid defeat of France a month later came as a massive shock to the Russians and made them even keener to avoid war in the short to medium term.
The reforms were only partially complete when Nazi Germany attacked.