"It has been widely reported, including by the Tribune, that Mirotic would have to agree to a trade by virtue of the two-year deal with a team option he signed as a restricted free agent. That’s technically true — but only if the Bulls don’t pick up the second-year option before trading him.
If the Bulls exercise the team option first, Mirotic no longer has veto power and can be traded anywhere that a deal is found. Thus, the Bulls are in the strong position of negotiating with teams with both options.
They can dangle Mirotic as an expiring contract if that team doesn’t want the option exercised, although Mirotic would have to agree to be traded to that team in that case. Or they can shop him as a productive player on a manageable two-year, $27 million deal, with the Bulls picking up the option before the trade. In that case, that team also would get Bird rights on Mirotic when he becomes an unrestricted free agent in 2019."
As a Bulls fan, I hope they keep him.