I don't think we need to start that . . . FWIW, Renzo himself does not teach classes on a daily basis. At least this is the true at the main academy.
Instructors might change depending upon the time. John Danaher does mornings and afternoons, and the class I usually take (6pm), the main instructors are Igor Gracie, Gregor Gracie, Magno Gama and Rafael Natal.
no no i'm not dissing marcelo at all. But to say "marcelo no question" just because he is a great competitor is flawed logic imho. If they were talking about say leo vieriera or Terere i understand because they produced champions. Now, i am not saying that marcelo is not a good coach neither am i saying that he won't have students win championships.