Just on Gus, I actually can't ever see him to returning to coaching full time (at least in the near future). The set up he's on at the moment is fantastic. Millions from Nine and the Herald, fans lauding him as one of the best ever coaches. Why would he want to lose his position and possibly risk losing this "super coach" view everyone has of him? The media at Nine seem to have put Gus' coaching ability in such high regard, anything he does achieve in coaching will probably be seen as an underachievement. I think Gus is a fantastic coach, and we'd be lucky to have him...however I think he has more to lose going back to coaching than he would not going back, and I think he knows that (as much as he may miss it).
If he did want to go back to coaching though we'd easily be one of his first preferences. The only club he seems to like better is the Roosters, and he knows they're in safe hands with Smithy. He seems to love the Tigers too, but they have Sheens (I don't rate Sheens, but most of the league world seems to).
With Bennett, I think he'll either stay with Saints, or go back to QLD to have one more stint before retiring. I will say though, that we can offer him a a lot more than Souths can...and not just financially.