Quote Originally Posted by hellenes
Alexander III was a Hellene himself so arguing who introduced what in the same ethnic group is moot...

Hellenes
Technically Alexander's dad, Phillip, created the new army and developped the fighting methods. Alexander was just knew the army intimately(NO, not that way..) enough to know how to employ it. Its limitations and abilities. The Alexander's Macedonian phalanx line would sometimes almost been broken by the time Alexander rode in to save the day. Gaugumela and the battle when the phalanxes were subjected to rough terrain are two examples of that.