Barcelona president Bartomeu said Pique is best center back in the world

In a major disappointment for most enlightened Barcelona's supporters, Pique has signed a new contract which will keep him at Barca until 2019, the delighted Barcelona president even labelled Pique as the best center back in the world which would leave a lot of people shocked at such an assessment. How can a player who is widely maligned for the numerous defensive error and problem in the Barcelona team which undermined their pursuits of glories in the past few seasons, can be considered to be the best? If the Barcelona hierarchy has such a yardstick for measuring defenders performance and abilities then how can Barcelona supporters trust them that they will get a defender who is suited for the task?