If the clubs don't want them for starting spots, then why do they want them at all? Just because they can?
Well who are you talking about?
Maybe they are priced right and are a back up option? or potential future players, look at the Burgess boys, Sam had the name the others were fringe players that would not be on top dollar, they have probably done better in Oz than they may have in England.
Why was Worrincy signed? dunno, he was not expensive I guess, he may have been a similar wage as some Windsor Wolves players, Jordan Tansey? Richard Mathers?
If a player backs himself and has potential and is cheap what is the risk?
Worst thing can happen he does not make it and goes home.
3)George Burgess (only a handful of games under his belt at this stage, he was hardly a star import)
You can fill in the other 2 dozen or so that you have in mind.
Who are the others on this exodus?