On the Cator subject, I would potentially keep him as a squad player if there's a right deal for the club salary wise. There's no doubting that he tries hard and you do need players like that in your squad but in terms of ability, I feel that his injuries have taken their toll on him. Armstrong is definitely who we should be looking to develop over time so keeping Cator on for, say, a year would help that without rushing Armstrong.
On Fash, I do feel that if Satae returns that ability wise Satae, Ese Ese, Ashworth and Sao (presuming the fireman rumours aren't true or are on hold) are above him ability wise. That's not knocking Fash because, like Cator, he tries hard and plays his heart out. But I do think he might find himself down the pecking order.