Koeman should be given another season. Think that's obvious at this point. And even if Barca wanted to replace him, that person shouldn't be Xavi. I can't stand this trend of hiring inexperienced coaches just because they are the club's legends. It working with Pep doesn't mean much. There are other, less successful examples to look at. And more realistic, since Pep is one of the best ever. Xavi should stop this money hunt in Qatar and come coach in Europe.
I'd prefer Nagelsmann over him as our next coach.
This is not the way my reasoning goes for why Xavi could be great and would be the best option now.
Since it probably got lost in the wall of text, summary of results under Koeman:
Liga: Projected points is 83, which is about as low as last season, and worse than any other post-Pep season.
CL: Embarrased by Juve in group stage, then embarrassed by PSG. Didn't reach QF for the first time since Rijkaard.
CdR: Reached the final with the help of maximum luck in almost every leg, even against Cornella.
Supercopa: Shamefully did not manage to win this one. Lucky to reach the final as well.
Yes "he" has introduced some young players, but what old players have been kept out? Pjanic and Braithwaite, the others have played when fit. He was desperate for Depay and Wijnaldum...
If he manages to go almost clean from here, reach close to 90 points and win the cup, then I guess he will have a case to stay (unfortunately). But I think he has made a lot of mistakes and have his players to thank for the results, which at least at this point are not very good. I don't have a hard time seeing Barcelona lose the final and reach even less than 83 points though, and in that case I guess Koeman would only have benching Pjanic and Braithwaite as his case to stay...