I think that's exactly what they're doing, they're certainly not relying solely on the FSS.
From memory, we've sold Taylor, Higginbotham and Vaulks (don't think I've missed anyone) that didn't come through the academy. That in itself is an unusual situation and I think the fact that our academy was so well thought of helped with that. The academy however produced £millions by the sale of Flynn, Wallace, Arfield, Kingsley, Fulton, McGrandles, Murdoch, Blair, Biabi, Gallagher and Mark Stewart, who I'm sure briefly joined the academy before playing in the first team.
It was a terrible decision to axe it.
Edit to say that, hopefully, Fulton has still to get us some more cash if he's sold on. That add-on in itself may reap more than the accumulated fees of the three non-academy players that I mentioned.