If he can stay fit, he's the ideal replacement for Menzies...not Williamson.
He's a ballplayer, can kick goals, has a great base skillset and can play 80 minutes.
injuries have crippled him last 3 seasons unfortunately, but he's always been a great player.
I compare him to Heighnington or Laffranchi. He has one of those builds that are very difficult to tackle, but he is a hard defender himself.
I see him eventually being starting lock for you guys, shifting glenn hall to the bench and stewart to second row.