Yes, since Xabi Alonso is new to the club, it is definitely a matter of time for him to relate to the team. Real Madrid is a team where everyone comes to achieve something good, so if he can relate to this team, then it is possible to achieve. Xabi Alonso should be given more time at the moment because he has not been able to fully select players and complete good tactical aspects so far. However, when he can fully relate to the team and lead the players well, then he will be able to achieve something good. The days ahead will definitely be good for Real Madrid, according to their current performance, they should definitely be given time, maybe they will improve more in the future.
In as much as I will agree with you that xabi just came, that it will only take some time for the players and himself work very closely to do the needful in the team, I think he should start now to identify the lapses, it very difficult for me to believe that PSG defeated one of the giant of Spanish laliga in the semi finals of such an important competition with such numbers of goals, I feel sad because we know what happened last season, of such happen again, it becomes a problem, Xabi is now here, why will even take him much time to organize the players, this should not continue as a matter of fact the fans are not happy, the defense is bad, we cant continue to reemphasize on this all the time, he's the manager now and he should know that all eyes are on him and he better act fast.