A couple of things on the above.
Hiring an outside law firm when there's a charge of misconduct against a senior corporate official is pretty much the base case in large, well-run organizations. It happens more frequently than most people know but it stays in-house. The large law firm would have the resources to interview folks that the Cs wouldn't have internally and the report is also privileged information.
However, just because the law firm did an investigation and wrote a report doesn't mean that any of the stuff in the report is proven. Because of that, I would be shocked if the Cs said anything to anyone about what they might or might not have discovered during the investigation. If the Cs did say something to another employer and it turns out to be false, then the Cs are opened to liability. I don't know an attorney who wouldn't tell the Cs not to say anything if asked.
Maybe NBA owners are so risk-adverse to things we think Ime may have done or maybe they've looked into Ime independently and found stuff that is disqualifying but as it only takes one owner who thinks Ime is a "winner" (TM) and thinks he can manage Ime to hire him. As such, I'll put my internet bragging rights on the side of if Ime gets a job, and if he never does, I hope everyone forgets this post (or at least the predictive part of it).