Upgraded Players

So I've noticed that after you upgrade a players overall rank that there is nothing you can do with the player after you do that. You can't  AUCTION it, EXCHANGE it in or use it towards the upgrade of another player. And once you get a player with better and higher stats and have no more need of that player you are just stuck with it. EA should either update the game to where you are able to Auction off a upgraded player or they need to add a way to DEVOLVE an upgraded player. Something to where you get back 1/2 the items and players used to upgrade said player which brings it back to their initial level then you can auction it off. Cause as most of you know how much it costs to upgrade a high overall player and it's just frustrating and bothersome the way it's set up now. For those of you that dont know what I'm talking about heres an example. To upgrade my Kam Chancellor 90 overall and upgrade him to 92 overall it took me 12 players at 85+ overall, 5 Seahawks badges, 5 Saftey badges and 5,000 Gridiron Dust. And if I get a stronger player and want to add them to my team then my Kam Chancellor just sits in my collection collecting dust. Its especially more upsetting if you paid money for an offer from the store to be able to get a player. It just seems like a greedy corporate move by EA to make people buy more packs from the store.