#2 Tactical flexibility
Having a wide array of players, especially in midfield, can be a huge advantage in a tournament like the World Cup, where a team has to face various kinds of opposition. Luckily, the Spanish midfield is one of the best in business amongst the teams participating in the World Cup.
The team can control the midfield like no other team can. The likes of Isco, Sergio Busquets, and Andres Iniesta are not only press resistant, but also are great passers of the ball.
Moreover, this team can quickly shift to a counter-attacking system with the likes of Marco Asensio and Lucas Vazquez operating on the wings and facilitating quick transitions from defense to attack, as demonstrated by their recent exploits with Real Madrid this season.
With such versatility in their attack, La Roja has the ability to play various formations and it will be interesting to see what kind of formation does the team deploy once the tournament commences.