Did leadership and technology help Germany win early victories in World War II?

Yes, the
German's grasp of military tactics (good leadership) and their technological advantages helped
Germany win early victories.

The German university system was the finest in
the world at the time, especially in the sciences, and the vein of preexisting knowledge was
used to good advantage in giving the Germans cutting-edge military technology. For example, the
Germans developed the first mass-produced assault rifle. It was called the Sturmgewehr 44 and
provided the Germans a tactical advantage in combat. The Germans also developed the first
three-turret tank, which gave them an advantage in allowing a tank commander to survey the
battlefield from a turret.

As time went on, however, the more sophisticated
German tanks were more...