I think a good change would be allowing the player to swap out a dude for another dude mid-run every like 25/30 rounds. Right now it's just order of acquisition, and you would never NOT get a unique relic for a dude on your roster because they're all OP. Right now there isn't much planning or opportunity cost. With this change, it'd make you think twice if you want to invest in that dude or chance a better base later into a run. Just a thought.