PSG is set up nicely but they lack that strong mentality to overcome teams at the level of Bayern,Barca, Real. They have managed to deal with the EPL teams and shown that they can beat those (winning against Chelsea with 10 men for example) but it's when they get to Barca when everything falls apart. Neymar will help them in that regard because they have lacked that one guy with his mentality. Barca are in a weird spot, there are no obvious replacements to make a like for like switch. Dembele can dribble as well as Neymar but i don't think he has the same assist and goal output, Mbappe might work because the kid seems to be able to handle pressure like when his teammates disappeared against Juve he kept at it. Coutinho or Erikksen would be an Iniesta replacement/understudy IMO and Alli does not have the skillset to be a complete dribbler, just saw a stat with his dribble success rate in the 30s compared to Hazard who has close to 80%. It is a step back for Barca when Real is not losing any of their first 11 unless Bale gets crocked and is sold.