#3 Messi's rigid determination
Having lost his European dominance to Cristiano Ronaldo in each of the past 3 seasons, it doesn't require critical thinking to realise which competition Lionel Messi has prioritised for the campaign.
Speaking at the Nou Camp for the first time as Barcelona captain, the Argentine promised the Camp Nou faithful that he would do everything to ensure that he brings back the UEFA Champions League trophy to the Catalan capital this season. He was quoted saying,
"We have a squad to get excited about this year and the signings we have made make us better than we were,"
"Although last year was good with the Cup and LaLiga, we all hurt after our Champions League elimination.
"We promise to do everything possible so that beautiful cup will be back in this stadium."
With such a rigid determination, there is no doubt Messi could conquer Europe again this season. As a matter of fact, his spectacular hat-trick against PSV on Tuesday has added some form of justification to this.