The Miami Heat made a decision to waive forward Derrick Williams in order to make room to sign Okaro White to a contract for the remainder of the season and a partial guarantee for next season.
The Miami Heat are releasing Derrick Williams and signing forward Okaro White to a two-year contract, league sources tell The Vertical.
— Shams Charania (@ShamsCharania) February 6, 2017
The Heat were granted an exception to sign a 16th player in light of all the injuries they were facing. But with Josh Richardson set the return soon, they would not be allowed to continue that permission.