We're really stockpiling young players.
Sandro
Lookman
Calvert-Lewin
Davies
Holgate
Vlasic
Dowell
Kenny
Williams
Walsh
Onyekuru
Markelo
Gibson
Bowler
Donkor
Mathis
Connolly
Robinson
Sambou
Foulds
Galloway
Pennington
Gets pretty iffy down the bottom there obviously but that's a loooot of talented young players. That's only including players who (I think) we've either bought, or have had senior experience somewhere. Monaco's change in strategy a few years ago was basically 'get loads of great kids and assume a bunch will make it', so hopefully our long-term recruitment is better than our short-term.
Chelsea also started it a while back and make a fortune from loaning out and moving the players that don't make their first team on (more or less 100%)
Also helps them stay ahead of FFP (I think?!)