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.