As much as I HATE it when people say it..."We'll have to agree to disagree" on that!
We now know that Hitler and the Nazis had NO CHANCE of EVER defeating the Russians, and the war in the East was NEVER as close or "touch and go" as it looked....EVER...
Ya gotta stay up with CURRENT research , PS!
Remember "Stalin's Secret Reserves..."
We are STILL learning about them, and will know MORE when the millions of pages of Soviet records STILL being released get read and evaluated
Hitler didn't know about them, (or he would NEVER have invaded!)Roosevelt didn't know about them, Churchill didn't know about them, (if they did, they would NOT have worried about the "Second front," OR Lend Lease, which Stalin wanted, and he REALLY needed those trucks, but not much else!) Hell, ZHUKOV didn't know about them! But Stalin knew, and committed only what he NEEDED to get the job done...and he NEVER showed his entire hand to ANYONE...
For example, haven't you EVER felt a LITTLE uneasy with the "official" histories' explanations of the Russian buildup prior to the counter offensive at Stalingrad that trapped the 6th Army? The numbers NEVER added up before, but NOW they DO!