While playing multiplayer, it would make sense that each person manages their own inventory. But in a single player campaign, inventory management is proving to be a pain. Its much easier to just throw everything onto the main character and call it a day.
Specifically, I'm referring to having to add and remove party members from the group in order to manager their inventory. Lae'zel picked something up, but you wanted to swap her out? Too bad, you have to swap her back in to get the item from her inventory, then swap her back out again. Its very tedious.
It makes sense to have the party inventory on the screen, but what I'm suggesting is that while in camp it gets expanded on so that you can page through everyone's inventory and equipment. I think the best implementation would be to have a set of arrows on the upper right, below the 'X' button to be able to cycle through the party members. Only the right 3 character sheets should rotate, that way your main character's sheet / inventory is always visible as you browse all the members in the camp.