Someone sent me a good question:
Can we make uneven trades? such as 2 for 1.
If so, can we fill the open spot with a wildcard player if we traded away 2 players for 1? What do we do with the extra player if we got 2 players for 1?
Also, can we dump 1 of the players we trade for and replace them with 1 of the 5 wildcard pickups?
Teams cannot have more than 5 free agents on the roster, so you cannot trade your free agents, nor free agent slots. If you want to trade 2 for 1, then the person sending back 1 player can send back any random scrub to even it out. So assuming they do not plan to keep said random scrub, then they can replace them with one of their 5 free agents.