I get the feeling, or maybe it is just a hope, the the fringe players leaving might slow down once it is proved that the Wallabies squad is selected on actual from rather than some preconceived notion of what a player is capable of. This is only just happening, and as others have pointed out, the guys who are leaving probably started the negotiations in the Super Rugby off season and therefore might be kicking themselves now.
I think that what will be needed is a multi-pronged approach.
1. Selection on form - this will mean that those pushing for selection, 3rd or 4th in line, have a reason to stay & push themselves to become better players & unseat the 'incumbants'.
2. Pay structure needs to be changed - I firmly believe that the Top-up system needs to go. Players should be paid based on if they are selected or not and if they play. Maybe the amount spent by the ARU on 'top-ups' could be fed back into the Super Rugby clubs to increase the salary cap.
3. To go along with the above, the contracting system needs to be sorted out. I honestly do not understand why the ARU does/should have any influence over what agreement the Super Rugby clubs come to with their players. How the hell do we end up with the circumstances where a player has a contract with a club for multiple years but the ARU has only ratified 1 year? In case you don't understand this means that even if a player wanted to stay at a club they can't because the ARU has to sign off on all contracts. Yes salary cap & forgien player rules etc need to be monitored, but I would have thought that if a player wants to stay at a certain club for 2, 3, 4, hell 10 years that would be a good thing for Australian rugby.
4. Exemptions to selection rules - I am a little loathe to open this can of worms, but.... if it must be opened..... Rules need to be set down in the start and followed. No changing them because of individual circumstances or pressure from which ever quarter thinks that they need to be changed in the middle of a season. I would start by saying that if you have 50 Wallaby caps then this may make you eligible, but only if there are no other realistic options. Yes, I think that Gits probably would have been selected in the squad if he was elligible, but there are so many ifs, buts & maybes in comparing players who are playing in different competitions that nothing is certain. Remember one of the things about have the players all playing in Aust is that they play against each other and in the same set of competition circumstances so can be easily compared.
I would also like to point out that there are many reasons for players to choose to play overseas. Yes the lure of the money is a factor. Let's face it the number of available professional contracts in Australia is very small, even compared to our near neighbours accross the ditch, so we would be fools to think that we would be able to keep all players in Australia. I am however concerned that those who are knocking on the door of selection are up sticks & leaving. I wonder if the ARU does exit interviews with these guys?