While I don&#039;t think the introduction of that rule or one similar in nature is entirely out of the question Fast, the problem lies in the perception of what is positive for both teams. The fact that the board + commissioner also have a stake in the way teams in the league are built (as they are players themselves) always also brings up the issue of fair play. Will a board member or commissioner attempt to block a trade because it is beneficial to their own team?<br /><br />As I said though, such a rule is not entirely out of the question and it would be up to the board to introduce such a rule to vote on. A rule similar in nature (where a trade must be approved) to this already exists but only applies to franchised players.