I agree with both Serghei and Devils - I think Valverde is completely clueless, but I also think there's an issue with our roster.
1.) Mobility - Iniesta, Pique, Messi, Suarez, Busquets, Rakitic - That's 6 players who have no mobility. Okay, you can exclude Messi in this argument because he's the GOAT, but the point is, half the team has 0 mobility, and will get outrun by pretty much anyone who isn't a turtle. Then you have Roberto, who isn't quick, and Umtiti, who's alright, but isn't a Varane and will get outsprinted by quicker players too.
2.) Attitude and Hunger - The majority of the players mentioned above do NOT fight for the FCB shirt like they should be, not in CL for sure. With Iniesta leaving, that's still close to half the team that's really not that motivated. I think the problem is that we think we have this 'style' that allows us to chill out and play at our tempo. But this is an illusion and most of us saw the Roma thrashing coming. We DO NOT have the technical ability at this stage to walk games and still be better. We are always going to get run over. Look at the PSG, Juvenuts, Roma games - what's common? People were gliding past our midfield like it was non existent.
3.) Tactics - Even under Lucho, when we talk about bringing intensity back, it only seems to be about that immediate ball retrieving press. We need a high intensity game both on and off the ball. I think people get satiated if they see some pressing of the ball, but we need continuous runs - real and decoy, and fasten the pace of the game. We cannot always pass backwards and then whine about teams being 11 behind the ball. Look at how Liverpool is intense when in possession, not just off it. I think we haven't seen this, not even from Lucho (pass to MSN and let them counter is not what I'm talking about). Our standard model of play is slowing things down, especially when it goes to the wings, because there's hardly any options in the center, except a fumbling Suarez, if at all he makes it in time.
There's a lot of work ahead for the management of this club, but it seems difficult to have faith that his board of corrupt suits will have the intention and gumption to do what's required, because it may result in short term pains.