A number of theories have been forwarded; some quite good; but let's focus on the actual situation as it existed on the morning of July 13, 1943.
It is arguable that FM von Manstein was the best field tactician the Germans possessed during World War II. Model's niche was in making the best of a bad situation on the defensive with what resources were available, his particular shortcoming was a willingness to believe his own "press releases". Those who have studied Kursk/Citadel can point to a number of events that might be termed a "tipping-point", but I look primarily at daylight of July 13. At this point, the entire Steppe Front was rolling in, and Germany had no fresh reserves on an equivelant scale to match this force. Further, Hitler went into an absolute panic when the Western Allies invaded Sicily. Germany was also saddled with the difficulties of having to station troops in the Balkans; both because of a less than fully cooperative local population, and the very real possibility of a Western Allies invasion.
Evidence points out that both Hoth and Manstein wanted to press on after July 12; with the reasoning being that even if the operational goals could not be met, the Soviets could be severely damaged. The situation on the north face of the Kursk salient was quite grave, and even Model could see the writing on the wall in so far as the fate of Orel.
Others have pointed out, accurately, that by the time of Kursk, Germany was under pressure along many lines. The Anglo-American strategic bombing campaign was begging to become a real problem, and a consistent source of drawing away fighter aircraft that were desperately needed in action against the Soviets. The decision to hold onto and fight for Italy was far more for political rather than strategic reasons. At July of 1943, the Western Allies would have faced great difficulty pursuing an offensive campaign through Italy and into southern Europe even if Hitler had elected to deploy less force there. The greatest military threat that came from the Allies holding Italy were closer airfields that put a knife at the throat of the German-controlled oil fields in the Balkans and southeast Europe. Never the less, defending Italy did tie down enough Allied resources to buy Hitler time to further prepare and strengthen the West Wall defenses; as it was now only a matter of time, and location, before the Allies invaded western Europe.
Although Germany suffered tremdous tank and infantry losses during Kursk; and the most critical result of the battle was the permanent loss of the strategic initiative to the Soviets; they were by no means broken. The late summer and autumn of 1943 saw great improvements in weapon systems on both the German and Soviet forces. The KV-85 began appearing in numbers, along with the T-34/85, while the "teething" problems with the Panther were resolved, and greater numbers of tank destroyers (like Nashorn and Marder-III) were reaching the combat areas in greater numbers. Additionally, Lend-Lease cannot be emphasized enough. As others have pointed out, the sheer number of locomotives; and most especially tens of thousands of trucks and halftracks; allowed the Soviets to concentrate production on armor and frontal aviation. In particular, the trucks provided through Lend-Lease gave the Soviets an ability in mobile, in-depth operations they had lacked in 1941-1942. The other side of this equation is that, despite the successes of the Allied strategic bombing campaign, the Germans were able to increase weapons production steadily throughout 1943.
Much of NATO's ground defensive strategy was modeled after examining actions by the Germans (often heavily outnumbered) against the Soviets in the fall of 1943, and the winter-spring of 1944. With few exceptions, the Germans always retained better communications, and with it, superior command and control of what forces; these crisis "fire brigades"; were available to counter Soviet thrusts. This was a realm in which Manstein excelled. However, to be successful, Hitler would have had to be convinced to trade space for operational superiority; and the very idea of surrendering conquered ground was anethma for Adolf. Further, people shouldn't overlook the "personality" issues post-Kursk. Model was certainly more of an ardent Nazi than Manstein, and so in Hitler's eyes was to be more trusted and relied upon, rather than these risky moves von Manstein proposed, which involved giving up ground taken by Germany. The other side of that is a genius isn't always at the top of his game every day; and despite that the outcome of Citadel was clearly obvious by July 14, Manstein wanted to press the attack.
I believe that the historical evidence points to A) IF Hitler had approved a rapid withdrawl to the Dneiper by August 1st, 1943, the Germans could have built a formidable defense against any further westward movement by the Soviets, and B)had Manstein and Model been given a more free hand in operation |