Yes will be a tough tough call - Parker is a great defender as is Harper - both also good in attack. Walker just brings that bit of craziness and an error or two and maybe a defensive miss but game winning magic. I think the slide defence will help Walker because he has some quickness off the mark and you need that in slide. Will be interesting to see how it all plays out. But whatever the combination I would be pretty happy... just in different ways.There’s no way I’m dropping Parker at the moment. Our centres are arguably the two best defensive centres in the comp right now.