and that's absolutely why we should be targetting him.
no guarantee that jamar will play beyond 2015, no guarantee that gawn / spencer will push to be #1 ruck.
i think the unfortunate thing with ruckmen these days is that you can only really run one at a time, as a primary ruckman, and the likes of gawn have never had a clear run being 'the man' (so to speak) as when jamar has been injured he's been injured. when spencer got a go at the start of last season he was reasonably okay. not amazing, but okay.