Honestly, the parallels between Jeff and Pierce offensively are pretty obvious. Both can drive and finish (and draw fouls). Both can shoot the three-ball, and both have great handles for a forward. As of now, Pierce has the clutch factor and Green has the athleticism/height. I think people calling for him to add things to his offensive repertoire are being a little selfish/overzealous.
If Green can keep up his recent level of play (17ppg on 49% fg, 40% 3pt, 4.4 rpg, 2.5 apg, 1.4 bpg since the All-Star break) then I am more than happy with that. I don't think anyone can argue he needs to give us any more than that to make his contract worth it.