Should Corey Williams be retained as a broadcaster
My opinion is no. If the NBL is serious about becoming a top-level sporting competition. The main issue with Corey is that there is too much focus on "him". Him being his opinions, basically (this extends to other commentators always referring to what Corey thinks, even if he's not calling that particular game).
Essentially, fans tuning into the broadcast are being treated to an episode of "let's see what Corey thinks" rather than a game of quality NBL basketball. OK, this is an oversimplification but I think there's some truth to it.
When I turned on the broadcast of Melbourne v NZ Game 1, his first comment was "Edgar Sosa and NZ going to take down Melbourne United tonight!!". Great enthusiasm and nothing wrong with having a prediction, but how about actually building the main event up itself by breaking down the game, storylines, what we might see? That's how most top-level sporting competition broadcasts look like. Inform and educate the audience, and let them make their own judgments and opinions. Maybe after you've done that, then let us know what your expert opinion is.
By having so much focus on one guy's opinion, you are trivialisng the actual game itself.
A second reason why he shouldn't be broadcasting is that his ability to analyse and communicate the game to the audience is fairly rudimentary. But he's not alone in that basket in the world of sports broadcasting.
This isn't to say he shouldn't have a role at all in the NBL. I noticed the other day he launched a YouTube discussion type show, which, whilst I haven't watched, sounds like it would suit him. He's also been on a panel type show like Bill & Boz which may suit him better. And he has been noted for his ability to stir up a conversation on Twitter, which is also a positive. But let's keep him off the broadcasts, please.