I agree with you on this. He even brought a team that started badly in the league to a very good ranking and achieved a not bad success. While doing this, he succeeded with very inadequate players, now I am sure that he will be much more successful if he can bring better players to the team.
If Xavi coaches this team for a few years, I'm sure they can win the Champions League
Let's not forget that except for Real Madrid, most of Barcelona's direct rivals that were threatening to through them out of champion's league spots like Sevilla, Atlético Madrid, Real Betis started declining so badly just when it mattered mostIf Xavi coaches this team for a few years, I'm sure they can win the Champions League