MarshalBraginsky
Banned
They could have mobilized more material and men with appropriate planning. Even if they lack officers the Germans simply lack the numbers to grind through several million more Russian than OTL. Hell, IOTL STAVKA ordered all units to not fire on the attacking Germans as Stalin believed he could resolve the "incident".
There was also an incident where a German soldier surrendered to the Soviets before Barbarossa happened and he did say that they would invade. Stalin had that poor German soldier shot for spreading 'false propaganda'.