I'm getting just about sick of this question now. It's like Saints don't have an academy, have no good players coming through thier system.
Saints can lose the likes of Cunningham, but then there's Roby in his place. Lose Long, but then comes Eastmond, then lose Eastmond (allegedly) up pops Wheeler. Clubs lose players, its inevitable, some of you may not believe it but one day Sam Tomkins will leave Wigan!
Players leave and that always provides oppurtunity for a new young prospect to take his place, and with the club in question being St Helens, I imagine whoever it is will be a very good player.