Since the La Liga title is definitely going to be won by Real Madrid, I think Barcelona should now focus on the Champions League matches. A top four finish in La Liga will be enough for Barcelona.
Real Madrid have good advantage against Girona and Barcelona so they have good chance to win La Liga. Except if they suddenly have some bad performances and Girona, Barcelona play well enough to equalize differences on the league table.
Girona's performance began to decline after the defeat against Real Madrid. We can see Girona's erratic performance since the 4-0 defeat against Madrid. And in the last 5 matches their performance has further deteriorated. They have lost 3 out of 5 matches. If they won two of these three, Girona's dream of winning the title would still be alive.
Moreover, Barcelona, Atletico Madrid and Girona are fighting for the second place in the table. Although Barcelona's performances have been somewhat erratic, Girona and Atletico Madrid's overall performances have been weaker than Barcelona's. So I think Barcelona won't have to struggle too much to occupy the second place in the table.
I disagree that Atletico Madrid are in a race for a second position. That race is like between only two teams Girona and Barcelona. Atletico Madrid are racing and defending their fourth position against pressure from Athletic Club.
Atletico Madrid are only 6 points behind Barcelona. Each team will still play 10 more matches. Girona have lost 9 points in their last 5 matches and Barcelona have lost 4 points in their last 5 matches. And if Atlético Madrid can return to form, then Atlético Madrid still has a chance to move to the second place in the table. Closing the gap to 6 points from 10 matches will not be difficult if Atletico Madrid can continue their winning streak.
This is going to be Xavi's last season with Barcelona. So he will try to give his best to Barcelona. Since there is no chance of winning the title of La Liga. So now Xavi will try to do well in the Champions League. However, Barcelona's overall performance does not seem like a team worthy of playing in the Champions League final.
No matter how Barcelona will end this season, Xavi can leave Barcelona as a head coach with pride of himself. He agreed to take risk and take the head coach position when Barcelona were in serious trouble and he helped them to win La Liga. It's a very good for the club during their crisis time.
Now, in this season, Barcelona play not too well but at least they are still in top four and still have chance in Champions League. To assess Xavi works in this season, let's wait for the season ending.
Xavi has already announced that he will not be with Barcelona next season. And it is the right decision. Xavi took charge of Barcelona at a time when the team was in complete disarray. Koeman turned this team into a shambles. Barcelona's performance has stabilized since Xavi took over as coach. And the team won the previous season's title. Now this team needs to be strengthened. Barcelona should definitely look for a more experienced coach.