Yes, of course. Once they had seen some combat, American troops became less intimidated by German tactical superiority. Specifically, American troops in time learned to combine their various arms (machine guns, artillery, airplanes, etc...) more efficiently. With experience, troops also learned the basics of firepower & movement and also adopted the German innovation of infiltration tactics. Finally, Americans along with the allies, learned how to coordinate their infantry tactics with those of tanks, which allowed mass breaches of German fixed positions.