I think this forum in general needs a reality check as well. A manager change won't fix Barca's problems. If the manager is an improvement, it still won't be enough to win a CL with the squad as it is. The ship has probably sailed on Messi winning another CL, he is turning 32 in a few weeks. Even if a manager came in right now (he won't because it seems barca are sticking with valverde), by the time the team is built Messi will be too old. The best Barca can hope for is a couple more Liga titles and cup titles before Messi leaves/retires.
It's only after Messi leaves that the board will truly begin a new era for barca, however good or bad that might be. Barca will need to suffer for some years before a good post Messi team is built, I wonder how many of the fans on here will stick around for that.
A manager change will change everything. Everything. A good manager will build a generation of footballers and we need this now. We are at a phase where we need someone who is great in one on one management. You have Dembele, Samedo, Arthur, Coutinho, Puig and now De Jong. EV is horrendous at such at task, he buried these players.
Pep back in the days built Pique, Busquets, Pedro and Alves. He also brought the best version of Iniesta and made us forget Ronaldinho in the left flank after watching him play for few games