How so? They way I'm looking at it, this will expose more players to more rugby and spread the talent pool around.
Almost the exact opposite of what Toulon is doing by buying talented players and watching them warm bus seats, not even being seated on the reserves bench.
Tahs sign a bunch of locks 3-5 years ago.
Neville. Skelton. Matwijow. Coleman. Jeffries. Lousi.
Plus they have Mumm, Douglas, Dennis and such on the books.
One or two are kept as depth, the rest are sent out on loan to other sides.
Coleman is the top performer of all of these players over a year or two of loaning, then Neville, then Skelton.
So Mumm, Douglas and Dennis all move overseas, but three of the "best" half dozen or so young locks are with the Tahs, and the cycle repeats with Phillip, Tui, McCauley, Toleafoa etc.
Same could go with the Reds, with guys like Enever & Arnold, Murday, McDuling. Even the Toolis twins for that matter. As Horwill leaves and Wallace Harrison retires, Enever and Arnold get pulled back into the squad, keeping the Reds at high strength while weakening the Force/Rebels and to a lesser extent Brumbies.
The majority of NH loaning takes place down divisions, unless it's a precursor to a move between seasons, or as injury cover.
Almost all developmental loaning sees Pro12 and Premiership players in the Championship and Top14 & Italian Players in the ProD2.