Barcelona has appeared impressive this season under the control of Xavi, Lewandowski and friends only suffered three defeats until they won the title. Thanks to his genius Xavi managed to polish Barcelona out of a slump, his arrival has brought about a big change after the previous coach was unable to make Barcelona a challenger in the title race.
Xavi and Lewandowski have been instrumental in ensuring Barcelona's victory this season. Since Ronaldo did it in 1996/97 with 47 goals in all competitions, Lewandowski is the only Barcelona player to have scored 30+ goals in all competitions in his first season at the club.
Xavi is also one of five persons who have won La Liga as both a player and a manager with the club. Josep Samitier, Johan Cruyff, Pep Guardiola, and Luis Enrique are among managers who have won the league both as a manager and as a player. This is a credible season for Barcelona, and these two people deserve a lot of credit and honor.
Despite their failures in the Europa League and Champions League, they have been outstanding overall. Maybe it was too hard for them when they were in the Champions League and Europa League, it's normal because they have just recovered from a slump. Xavi Hernandez can prove that in his hands Barcelona can be better, and now is his second season with Barcelona to deliver the La Liga title.