I think there is much more upside associated with Johnson that with Jamar. At his best, Jamar provides shephards, blocks etc. but stil isn't a dominant tap ruckman. At PJ's best, which probably hasn't been seen yet, he can play forward, but again, isn't a dominant ruckman. So we do need to look to Meeson/Spencer or Naitanui/Warnock to get someone to help in the hitouts department.