Spain became the fifth holders to be eliminated from the World Cup at the first stage after their 2-0 defeat by Chile at the Maracana on Wednesday. We have a look at five reasons why it all went wrong for the holders in Brazil. - Sticking with the old-timers After the 5-1 defeat against the Netherlands, coach Vicente del Bosque was forced to react and chose to drop both Xavi Hernandez and Gerard Pique, replacing them with Pedro Rodriguez and Javi Martinez. However, it would appear that the rejuvenation of the Spain squad should have begun sooner. A player like Atletico Madrid midfielder Koke, full of energy and desire, was introduced to the side too late. And the decision to keep faith in Iker Casillas proved to be a mistake. The captain of the great teams of the recent past he may be, but he has not been playing regularly for Real Madrid and Del Bosque has enough alternatives in the goalkeeping department, even in the absence of the injured Victor Valdes. - Porous defence If the fingers of blame are being pointed in his direction, Casillas might respond by saying that the defenders in front of him deserve criticism too. After all, Spain's success in 2010 and at Euro 2012 was based first and foremost around their watertight defence. The inspiration of Carles Puyol has been missed. Pique and Sergio Ramos worked in the past as a centre-back pairing, but not this time, and Javi Martinez did not prove to be the solution against Chile. Against both the Netherlands and Chile, Spain came up against sides playing unorthodox formations and couldn't cope to the extent that seven goals were leaked in two games.