What can we conclude about the Spartan Army during this period?
There is no question that the traditions of the agoge were degraded after Leuctra. It must have disappeared at some point because we know that Cleomenes tried to revive it in 236 B.C. It is likely that the few Spartiates and commanders retained the style of Spartan armor and weapons over time with some exceptions. Torso armor was replaced with a tunic during the fifth century. The Doru (six foot spear) was replaced by the Macedonian sarissa during the time of Cleomenes, as the Macedonian Phalanx became the accepted model for a battle formation. What the auxiliaries and mercenaries wore is unknown. Perhaps they wore whatever they owned because war was their profession and they needed to be prepared for it.