Earlier this year
Hawks to announce Brian Goorjian as coach
Speaking with an extremely close Illawarra source, Matt Flinn is still the coach for the 20/21 NBL Season. This was days before the news that Brain Goorjian was to take over as head coach on Monday (22.6.2020)
At the time of writing this, my source hasn't said anything yet and it's still early enough for news to break but I believe Flinn is still the coach.
(Mod: Updated title.)