I also thought Barcelona was going to lose that match,but surprisingly,Sevilla could not win them.I actually though Sevilla was going to win them like 3-1,but Barcelona still showed them the were Barca nomatter what.
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.
I already guess it with a draw ! Barcelona maybe difficult to win but Xavi can defend his team with a draw ,for Sevilla ah bad day ! You are right ,no one striker is really hungry for goals in Barcelona and Xavi has to recruit players who have the mentality and skills to win