Care to list the right/wrong issues?
IMO, there have to be a number of teams, they need to play each other multiple times, they have to fly to fulfill that, there should be some sort of measure to achieve parity (e.g., either or both caps), etc. They're the main things and there are only so many ways you can achieve them.
There are other elements outside of the control of the league and clubs: competition for customer wallets or in the media, media coverage, etc.
Within control of the league, you have the number of clubs and where they're located (I don't think they're far off with this), how they interact with media and present themselves (see my earlier post about the paper who gave up trying to get a game score) where they have a lot of room for improvement and centralised marketing for the league which is probably the biggest issue*.
If the review says re-brand, do it next off-season and avoiding meddling too much. Give people a year off from buying season tickets and they might get used to the idea.
* You see AFL ads, NBA ads, WNBA ads, etc but who can remember seeing an NBL ad? The best we've had are ridiculous slogans mentioned on the league site.