Yep - as others have said you get good and bad with Gelling, but I think the 'good' outweighs the bad.
Ignoring Inglis and King who will be 1st choice centres imo, none of the other players mentioned poses the same problems that Gelling does in attack (not considering Ratch here because we are likely to need him in other positions, although I am sure he'd do a great job), having said that we don't get to see Charnley at his best with Gelling even though (I think) they played together at Wigan.
Then there's the court case...... not sure about tbe timescale for all that, or whether anything is likely to happen.
Gelling won't want to be 3rd choice centre so I can see why he'd want to leave and it's logical that other clubs would be interested in a player of his quality.
With the cap involved, a lack of reserves and our youth coming through etc etc it makes sense in the bigger picture, BUT next year is SP's last year under contract, so are his thoughts going to be looking to develop the youth or will he 'play safe' and not risk them for fear of not getting another contract......... mmm.....