Even Xavi will have a decent result with them and they will eventually end up in the top 4, qualifying for next season's CL. The problem is that Barcelona is used to winning big trophies and they will not be satisfied with top 4 finishes.
It is clear that Barcelona do feel that what they have achieved has not been more than when they won the previous big trophy. The players also didn't seem too over the game. They want more, while in the coaching camp that Xavi is trying to fight for is still not enough to provide the opportunities they want to achieve. During Xavi coaching Barcelona experienced setbacks. Although in fact Xavi achievement is a good start at Barcelona.