Valverde knows what he is doing. I was also expecting Masche and a sub in midfield but I am fine with this line-up. Right now we are on a roll and could build the foundation to win the league. Real has to face La Real tomorrow and a clear win today would put them under tremendous pressure. Maybe they will have to chase us for the rest of the year until we face each other in El Clasico.
There will be enough time for rotations. There will be injuries, Copa matches, (probably) a meaningless CL group match, players coming back from their national teams etc. A new manager with a rather small name won't risk a single point at this stage of his tenure.