You definitely get way more of the poaching of established/high potential players in cricket than anywhere else though, not to get off topic but it's definitely not just castoffs. Basically any player who plays for one of the star players for the lower ranked test nations (Ballance, Morgan, Hick, Joyce, Rankin) is liable to be picked up with any excuse and even talented players from the likes of NZ and SA end up playing for England either for money or through some dispute (Kieswetter, Pietersen, Caddick, Lamb and a whole host of other SA/Zimbabwean/NZ/AUS dual nationals who hadn't spent a day in England until they moved here as adults to play cricket).