How the club would choose to manage it and the game's protocols might be two different things.
I think the bigger question might revolve around how often the decision needs making.
To quote Barry McGuigan "once you've lost that ability to take a shot you never, ever get it back". I think he's spot on wrt boxing but not sure about RL. My guess is that there are some players that are susceptible to being concussed though probably a lower percentage than in boxing. I'm not talking about Morgan specifically in this last bit I should add - hopefully his recovery is now complete.

All joking aside, I think we should be going for Sneyd.
Pay a small fee to Salford to help them out.
He's still got 2-3 decent years left.
We could release Frawley and have an OQ spot for centre / back row.

All depends if Frawley wants to go.
If he does then yes great idea and we have our goalkicker sorted as well.

I rate Sneyed but he will be 34 come the start of the season so probably only 1/ 2 years left in him.Releasing Frawley will be easier said than done plus I think Arthur quite likes him.Not convinced even if this happened we would have enough cap space to sign another quota player.

Keith Senior to the Bulls turncoat

I'd take Sneyd over Frawley without a doubt.