Yeah Gavi looks promising, skinny 17 year old that isn't afraid to get stuck in (much like Fabregas used to back in the day) and is quite mobile. He's a typical Barca midfielder that has been brought up in their system: good touch, great awareness and passing ability. He nearly scored the other day an identical goal to the one Messi scored on his debut for Barca.
They have got some very talented youngsters but their squad as a whole is a mess IMO. I think they need a coach like Ten Hag and 2-3 years of rebuilding (& smart signings) before they can have a genuine chance of winning the CL and playing the sort of football that we are all used to from Barca.