Sorry I havent been able to respond sooner....
My main reasons for looking at Athens and Thebes as the teachers of Makedon are the following:
- During the hegemony of Thebes(after Spartan defeat at Leuctra) the Athenian general Ifikrates looked back on how during the Peloponisian war, a 700 man Spartan elite mora was defeated by Athenian peltasts at the battle of Lechaeum.
This inspired some changes to be made by good 'ol Ifikrates- those changes were designed to try to strik a balance between the one extrem of the super-heavey Hoplite infanty, and the lother extream of the ight infantry role of the peltast, thats all well and nice Xen, but what did he do?
- replaced the large bronze, wood, and leather shield, with a smaller shield(only about half as big) made of wood and leather
-greaves were replaced by leather sandals which became known as Ifikratids
-metal cuirass' are made a no no

('cept for officers), and are replaced by the "linen cuirass", a body armor made primarilly from MANY layers of linen (or leather, most of the time a healt mixture of both in the layers), and coverd with metal scales
-all this meant that the Ifikratedian hoplite was now much faster, but much less protected, to compensate, the standerd 9 foot spear was replaced by a 16 foot spear
This new equipment proved to be effective but nevertheless did it never manage to replace the traditional panoplia that other generals were using for thier troops. The Greek warriors valued armour most likely higher than speed. Though as you can see, the Ifikratedian hoplite is basiclly a macedonian phalangite, but thats not all, the Macedonian Hypaspists were also jus renamed Ifikratedian peltasts, as he made changes to them as well, because although peltasts were -primarilly- a harassing infantry type, and the power of the peltast had always been the principle of hit and run, but there was also a need to increase their capability to charge an enemy force. -He now carried a larger and oval shield made of wicker instead of the traditional pelte. Later on the shields were even made of wood. As a mercenary he earned enough money to afford himself a decent bronze helmet. His weapons were still the javelins and a short sword, but he now also carried a short spear for thrusting with him. These changes, unlike those made to the hoplite, were actually used by not only Athens, but by most Mediterranean states from Persia, to Spain
As for cavalry, Thebes and its nieghbors like Pherae, and Thessaly were some of the few of the Greek states that took any pride in thier cavalry, and even then they were short in number, but by comparison far superior to the souths cavalry, for instance; Sparta simplly didint have one, having to rely on its vassals for its small (even by Greek standerds) cavalry, and Athens while having a native cavalry did little else then use it cerimonially, and have the troops fight on foot (although was generally cavalry present in some nuber in non-marine Athenian operations), but both states did put thire higher ups on horse back, but thats about the extent of it...