the item management as it stands is one big headache, some hero will have a ton of loot, others will have less and if you want to spread it evenly you need to move your troops, and the bigger the map the bigger the headache.

So, taking a page from MoM, I'd like to suggest having a depot, so that one could store the loot in one central location, be it defaulted to your capital or to a build-able (and research-able) structure, with a storage or retrieval cost in gold and or mana, something midgameish, where I find the loot issue starts becoming a problem (as in, I don't want to sell this just yet, but... or you just scored some good loot and you want to equip that hero on the other end of your empire)

This goes double with the current recruitment schema, which I don't like, since more oft than not means I only a literal handful of heroes so I have none to spare to work as pony express.

At the very least having a researchable transport spell between heroes would be ok as well.