He is a slashing shooting guard and around 6'5".
Apparently very athletic and a heck of a player so he'd be capable of playing SF at NBL level in much the same way that Hill is.
However, a Majstrovic/Nash combo at the power forward position with a small forward combo of Greer/Hill is pretty small when compared to our main competitors:
Bris: Bradtke, Dusty, Mackinnon
Mel: Anstey, Mottram, Tucker
Syd: Hinder, import, Worthington
Woll: Rampton, Ballinger, Saville
Per: Rogers, Ronaldson, Redhage
If it isn't a smoke screen then Greer must be a heck of a player.
A frontline of Nash, Freeman, Wheeler can compete with the above frontcourts but I don't know if we can with a player the size of Greer.