It'd be useful to have, on the team home pages, a filter for "On Trading Block"
Currently the drop down has player details, contracts, attributes by position, but you have to go to a different section and use the search menus for finding out who's on the trading block
It seems more intuitive when you're trying to trade with someone to go to their home page, see who they've got, and who they're already offering up rather than guessing at who they may or may not be willing to trade