#2 Trust the youngsters, do it

FC Barcelona has always been known to trust youngsters. If they didn't, we would never have seen the likes of Messi at 18, Iniesta at 18 etc. But it is not necessarily the case now. Oriol Busquets is 20, Riqui Puig is 19, Alena was promoted just now. At Puig's age, Messi had already played many games for the first team and also the El Clasico (scored a hattrick in El Clasico at 19). At Oriol's age, Sergio was roped into the first team and is now the best CDM in the world.
Trust the youngsters. They would make mistakes, no doubt, but these are the situations where they would be extra motivated for the game. They have a sense of responsibility here and they would also have a sense of importance to the team. We are also not asking to start everyone at the same time. Against Sevilla, Barcelona started Semedo at left-back, why not trust Miranda? Why not be bold enough?
Cillessen is now injured. Is there a need to start Marc Ter Stegen in every game? Why not play Inaki Pena against Valladolid? Why not give him a go against Bilbao? Even Ter Stegen needs rest. Why not trust Samper with the pivot spot when Rakitic and Arthur are ahead of him, while there is one of Pique or Lenglet as a cover? Why not play Chumi or Miranda against Valladolid? Trust them, they are the future.