Barcelona and Quique Setien headed into the game under pressure after three draws in four games which unsurprisingly prompted the coach to make changes for the match.
The 61-year-old tweaked his formation, brought in Sergi Roberto and Antoine Griezmann and must have watched on with pleasure as Barca put in a much-improved display
Luis Suarez and Grizemann both scored brilliant goals, while Lionel Messi was unlucky to see an effort disallowed for a tight offside but still ended the game with two assists.
Setien’s formation tweak seemed to bring out the best in Griezmann and, after a tough week, offers real optimism for the future.