The idea that players leave the Tigers and immediately get better is such bullshit.
There are a few who everybody basically knew were going to be good, left and then continued developing as expected - Moses is the obvious one, this is where Galvin and Utoikamanu will go if they realise their potential. Tedesco, clearly, though actually he was pretty amazing before he left.
Then there's the biggest group, which is players who were more or less the same. Some of them landed in a perfect place for their specific abilities (Garner, Blore), some got talked up largely because their failings were less significant at the new shop (Brooks, Papali'i, Luciano Leilua), many are exactly the same player just in a team that doesn't lose all the time (Liddle, Klemmer, Billy Walters). But none of them suddenly became world beaters - they just look better in a team that wins every so often.
There are a few hot prospects who never kicked on for anyone. Te Maire Martin and Jake Simpkin spring to mind but I'd love it if Galvin, Utoikamanu and Da Silva ended up in here.
My favourites are the ones who people say "just need a change of scenery" and then proceed to be just as shit, or worse, than they were at the Tigers. This is where you'll find your Daine Lauries, Moses Mbyes, Joe Ofanehgaues, Zane Musgroves, Oliver Gildarts, Josh Aoloiae and John Batemen.
