He's not really. He's a KPD who can take his turn and do relatively well in the ruck, he was played forward mostly so they could use him as a decoy for Dixon.
Yep. His natural role is KPD, which didn't suit the chaos-ball we played this year. He willingly moved forward, but was never fully comfortable in role and didn't really provide the decoy. Impey (and later Marshall) were preferred, and the back six had stabilised leaving Jacko on the outer.
Same for his ruck work - he stated himself a few years back he wasn't keen, but developed the flexibility as second ruck for the team.
Even his profile on the PAFC website (which is still there ) refers to him as a defender. Personally I'd love to see him revel in that role in your colours for 20 games next year. Was equal B&F for us in that role in 2011
Oh, and to the posters suggesting his candidacy for your leadership group? Yes. Obviously you may have existing candidates with tenure, but you could do a lot worse.