The tank support for such an operation was very weak on the Soviet side, especially compared to the requirements of the doctrine of Deep operations, and the practice later in the war, showing the dearth of resources in the Soviet arsenal at this low point of Soviet fortunes in the war.
The text describes a critical weakness in the Soviet army's ability to support tanks in deep operations, particularly when compared to their own doctrine and wartime experience. This weakness is attributed to a lack of resources within the Soviet arsenal at a time when the Soviet Union was experiencing significant setbacks in the war.