He's good at roving his own ruckwork, but if he couldn't ruck he would be a garbage midfielder, let's be honest.
Slow and lacks agility, he'd be a huge liability.
i wrote the below in the Grundy thread a little while back
"He is ranked 15th in the AFL (ie ALL players) for Stoppage Clearances - Gawn ranks 48, NN ranks 25.
His ranking of 15 is higher than Fyfe, Coniglio, Boak , Tom Mitchell to name a few
Ranked 16th in AFL for Total Contested Possession - Gawn ranks 63, NN ranks 43".
A huge liability? Not according to those stats.