It's already been a very busy week for the Chicago Bulls. Following a Monday report that tied six different names to the organization's open front office job, Billy Donovan finally made up his mind. The head coach announced on Tuesday via a statement that he would not return for a seventh season . Donovan had been mulling the decision for roughly a week, ultimately choosing to let a new front office conduct its own coaching search. The question now, however, is when will that search begin? Ownership can not even think about this step until its lead executive position is filled. And, as far as we know, this interview process is just getting started in earnest. Michael Reinsdorf also implied that the organization plans to be considerably more diligent this time around. They have already gone out of their way to hire a search firm for the first time in franchise history.…