note that shortly after that meeting with kerlin Ward, the Dragoons opened up Academies on Outreach, with training options in mech piloting, tactics, logistics, Mech repair, etc.. it was used a lot by mercenaries, but also by successor state military's. and graduates of said places would inevitably spread their skills around afterwards.
While the Dragoon's couldn't really improve the technology of the IS much without revealing their deception, they could conduct a ground-up program to increase the general competence of the inner sphere's techs, soldiers, and officers.