#3 Not paying enough attention to rivals
When Cristiano Ronaldo moved to Real Madrid from Manchester United during the 2009/10 summer transfer window, Barcelona were very much the dominant team, not just in the La Liga, but also in world football. Their mesmerising style of play bamboozled the best of defences and it seemed the Spanish giants would remain on top for years to come.
However, things changed as Madrid made some smart signings in the likes of Xabi Alonso, Luka Modric, Angel Di Maria and many others to combat Barca, who saw stalwarts like Carles Puyol and Xavi Hernandez depart the Nou Camp, but did little to replace them.
Looking back now, with Real Madrid clinching the UEFA Champions League title three times in the past four years, Barcelona have only themselves to blame for taking their rivals too lightly and not doing enough to strengthen their squad.
With every big club having a handsome amount of money to spend, it is imperative that they put the money in the right areas at the right time or else they will end up losing out to their rivals.
