If Vitor can bring his best, then he might share starts. Youtube has a chanel with Vitors game, he can pass, finish with both hands, Like to play Pick and Roll, takes charges, is physical, can dunk(barely) and can block shots and loves to rebound and can shoot three's.
While Zeller is athletic and has mid range game and might fit brads stysem more.
Aint seen much of Zeller but hear he is reliable more than Vitor, who like green shows up some times and then looks lost.