A very interesting watch here. Petty's individual performance has not been anything at all up to standard, but at the same time he is very important for structure, and as JVR said in his interview with Stafford, Petty is someone who uplifts the whole team and improves cohesion.
He does look down on confidence and i wouldn't be surprised if the trade issues were affecting him as well. An interrupted pre season does not help either - i think we should stick by him and re-assess after our next block of games vs Geelong/Carlton.
I have a feeling patience will be rewarded in the near future.