Caught the tail-end of an interview on ABC Grandstand last Saturday, driving home from work. Not sure of the ABC commentator's name - but she was interviewing Coach Thompson.
IIRC correctly, he commented that he had had some input into the BaaBaa's team - and that he had a few of last year's squad - including Tom Staniforth (now with Brumbies) - plus possibly some fringe players who missed out on the final squad.
As alluded to by HJ above, one might expect that those SS players who play on Tuesday night will be those that can obtain a "leave pass" from their respective Clubs - or who don't have to work !