Hope Valverde is watching this from his hotel room in Bilbao, to see how to play possession football and create chances. Doubt he understands much of what's going on though...
Sarri's setup is useless with the players he has especially with the Midfield.
Sticking one regista in there and pairing him up with two Midfielders who aren't comfortable with the ball when getting pressed will go about as well as you would expect.