Chelsea have some of the best prospects in the world, and a lot of very good players and prospects on loan and in the academy (albeit they keep losing some of their crown jewels)
The other side is that the dressing room seems quite rigid and less teachable than normal for such a young age, seemingly due to ego.
And they currently have very little money and can expect further punishments for non-compliance with financial regulations if not careful so big transfer windows may be difficult going forward, however their accountants are very 'creative ' so who knows