Follwoing on from my previous post, here is a quick list of the teams and the number of players who debuted elsewhere. Numbers may not be 100% accurate but it is a good guide:
Broncos 6 (28 used) 21%
Raiders 11 (30) 37%
Bulldogs 15 (27) 56%
Cronulla 18 (29) 62%
Gold Coast 15 (30) 50%
Manly 10 (28) 36%
Melbourne 10 (28) 36%
Newcastle 15 (29) 52%
Cowboys 15 (30) 50%
Parramatta 7 (31) 23%
Penrith 18 (30) 60%
Dragons 11 (30) 37%
Souths 10 (27) 37%
Roosters 9 (25) 36%
Warriors 7 (28) 25%
Tigers 10 (34) 29&
Broncos, Parra, Warriors, Tigers are the best at debuting players. Cronulla, Penrith, Bulldogs and Newcastle are the worst