Barcelona could still win it, but they are doing something much bigger than that right now if you ask me, the yare actually building a club without money. Look at their roster and look at the squad overall and how many young talents they have. They haven't spent that much money on these kids, most of them are from their own youth team, and Xavi knows La Masia all too well, so he is getting to use his connections there to find kids that are young and talented.
They could keep loaning some younger players to their league rivals as well if they want, they are doing that too, and as long as they play some themselves, and let the others grow somewhere else, they could end up with a good squad without spending much money. I feel like that's a good thing.
Barcelona will not allow what happened in their last match happen again, because their coach was not happy the way their defenders allowed their opponent to first them to achieved the first goal in the first half to dominate but Barcelona used the second half to draw the match 2-2 to share the points. If Barcelona management can do what Real Madrid management are doing to their potential players by giving them long term contract with increase of salary, if Barcelona management can apply this formula to their potential players, it will really help them to improve higher before the end of the la Liga league competition. If the management can also apply that strategy of loaning some talented players to join them, I think it will help the team to eliminate all those errors that is affecting the team not to perform well.