It would be free agency, not a trade. The league has no say in that. Also remember CP3 was being traded from a team that was “owned” by the league at the time, gave them even more veto power than they usually have on trades.
Yeah but the trade the Lakers were offering was a good deal, Stern just didn’t want it to happen.also Dan Gilbert from Cleveland was objecting to the trade too, acted like a big baby about it