What I see in this Barca side is the fact that they can create so many chances from the midfield,may it's because the coach was a midfielder and a good passer of the ball then,but the ability to convert their chances is the only problem they have now,and that is where they need to sign a sharp young and vibrant 9 that will finish their passes and convert it to goals.
Under Xavi's leadership, Barcelona's strategy is slowly stabilizing. But you need a good striker to score. Which Barcelona does not have. No matter how good the strategy is, it is very difficult to score a goal if the striker is not talented. Although Barcelona was happy to draw the match, Sevilla needed 3 points in this match. They are 5 points behind Real Madrid.