For starters Riggio is an on-baller, but its a tad difficult for a player of 2 games experience to break into the midfield. Riggio is 188cm's and an alot bigger unit than Shaun Grigg, as they are basically the same age. He will develop into a large bodied midfielder.
Grigg showed in juniors, that although he gets alot of the ball, he butchers it far too often, where as Riggio is one if, if not the best kick at the club.
I have no doubt Riggio would have starred last year if he wasnt taken underage, where Grigg was overlooked.
The VFL midfield for AFL listed players should be a walk in the park, I still remember Riggio ironing out 2 Geelong players in the preliminary final for the Roosters last year in the space of a minute, even though he'd only just turned 18.
You desperately need to get down to a Bullants game and check out your definition of butchering . I was under the belief that Riggio played most of his junior footy down back too, I could be wrong.