Barcelona played well as Getafe didn't have much chances to do anything in this match. The early goal by Barcelona also made the game easier for them as they weren't under pressure to score but wanted to make the winning guaranteed with another goal. Lewandowski has been a good addition to the Barcelona squad as he keeps on helping the team to win with his goals. He could have gotten more today but at least Barcelona didn't lose but they won the game with a goal. Barcelona next opponent is Osasuna and they're will be playing always but that won't be a problem as Barcelona are going to play well to be able to retain their position at the top of the table.
The positive trend that Barcelona continues regardless of the score, but the most important thing is that Barcelona gets 3 points.
Lewandowski this season has again managed to show his best performance, even though in the past few seasons Lewandowski seemed to have difficulty and received a lot of criticism because he is no longer young, but this season Lewandowski has proven that he can still contribute greatly to the Barcelona team.
I think this is all because of the tactics of the new Barcelona coach who suits Lewandowski's playing style and makes him more support from other players for Lewandowski to score goals.