I don't know if they've scouted or not but they have signed only Graham since Connolly and Davies.
Considering half the English national team has had a huge impact in the NRL then it's fair to say that they produce good players.
Widdop, Sam, George and Tom Burgess, Hodgson, Whitehead, Sutton and Bateman are all very good players that any club would happily take. And of course Morley before them..
The ESL standard from top to bottom may not be great, but that doesn't mean they don't produce stand out players that are too good for that comp like those listed above and probably a few others that haven't been given a chance yet.