I thought I saw a post here, posted prior to release, suggesting that brigades be named for their commander rather than given numbers.
I'd need to dig into the library to be absolutely sure the combatant armies in the 7YW didn't use numbers, but I'm inclined to say names rather than number would have a better "feel".
Any chance this could be implemented - hardly the most serious game-play issue, but it would be a nice cosmetic change.