The French and British had a hell of a time redeploying to try to stop the sickel cut with complete German air superiority, despite the fact that France had more planes when it surredered than when the campaign started and the British had flown in 100 Hurricanes and the 1940 LW was a joke compared to the allied air force supporting Patton and Monty. Rundstedt simply could not move his "reserves" in time and without being blown up by fighter-bombers, twin engine bombers or carpet bombing. Moreover, in contrast to the meager use of artillery during Blitzkrieg in France and for the Panzer divisions in Barbarossa, Patton had formidable SP and field artillery. Even after Patton was repeatedly halted for lack of supplies (which were going to Monty), the Germans never had much to throw in front of him during the pause and he always took off rapidly. In contrast, Monty never learnt to advance rapidly, paused even after carpet bombing blasted a big swathe for nim and the Germans had plenty of time to reorganize and reinforce. The incredible thing is that despite all that air superiority, naval and field artillery, armor, AT guns and infantry, Monty took so long to take Caen and that Eisenhower did not sack him. The Tigers were few and slow and required strong bridges, which were few could be destroyed by planes (or engineers during the bulge). There were also few Panthers and the Germans had nothing as fast as the Hellcat tank destroyer, which was redeployed very fast to attack a Panther column in the battle of the bulge. The WM relied mostly on Pz IV and STUG III in France & Bagration and relatively few of them, completely inadequate against thousands of Shermans and T-34 and huge air forces. Imagine how fast Guderian, Kleist. Höpner and Hoth would have advanced during Barbarossa, had they been supported by the 14,000 strong allied planes and the large number of trucks in France, instead of by 2,800 underpowered planes and limited logistics.. With Monty's supplies, Patton would have penetrated deep into Germany months earlier, forcing the Soviets to advance even faster, shortening the war and reducing American casualties considerably.