There’s an explanation on why Spain didn’t trash Honduras or why they didn’t beat Switzerland, some people (including myself) believe that Spain lack a goal-scoring midfielder in the Busquets-Xabi Alonso-Xavi model of the 4-5-1 (or 4-2-3-1) they are currently playing.
The problem Spain have is when teams like Switzerland make Spain distribute the ball to the wings, where the largely inefficient yet very talented David SIlva is currently playing. Spain are best at playingthe ball through the centre, making use of attacking full-backs and having wingers such as Silva, Cazorla or Iniesta that can drift in.
A quick look at some statistics will show us that Spain, with a team full of world-class players, do have one or two options. One option is to abandon the 4-2-3-1 / 4-5-1, play 4-4-2 with Villa and Torres up front, with Xavi as the supporting/attacking midfielder and Xabi Alonso or Sergio Busquets as the defensive midfielder.
Another option would be to use Cesc Fabregas, another world-class player, Fabregas has made 3 shots with 1 on target with 24 minutes played at this World Cup compared to Xavi who has no shots on target, no shots with 156 minutes played. This is not a criticism of Xavi, rather an appreciation of the ambitious, driving runs Fabregas makes from midfield, on top of scoring 19 goals this season which gives him confidence going forward, against Switzerland, Spain just needed someone to make the link-up play with Villa from Busquets (defensive midfield to attack), Fabregas could do this with penetrative runs.
Another idea is to avoid using inverted wingers, such as playing Silva on the right wing or playing Iniesta on the left. This allows for natural width, by putting a traditional left-footed winger such as Mata on the left wing and allowing him to cross at the byline.