There should be only one logo UNIQUE / team once you got it it stays that way.
The logo's on the market should be unique as well - Barcelona logo should be only sold ONCE, and so should be only one team having the name of Barcelona FC not 100.
Unfortunately this game is made to bring money to developers not to keep us interested.
I believe they would make more money if they would consider some of our opinion and requests. But hey, I'm not the owner.