An idea to improve storage system

I was organizing my champions today when I had the thought that it would be so much easier if there was a section of the tavern or shop or something that we could use to trade champions that we have designated as "food champions" for chickens of the same value. That way they are stored as chickens and not taking up space in the vault, as it fills up so quickly and I spend so much time clearing it out.

Just a quality of life thing. I know our player power numbers would shoot down as a result, but I would love to have a more seamless system for levelling champions up. Any tips for staying organized in the meantime?