I agree with you. Hansi Flick is trying to take Barcelona to a better level. They may not have done so well last season, but they are preparing themselves to be a strong opponent for next season. Adding Marcus Rashford to the team to maintain possession in the midfield and increase the strength of the attack should be considered an effective move for Barcelona.
I especially think that Barcelona is a balanced team compared to Real Madrid because they are determined to spread the individual performance of players at every level on the field.
Hansi flick is just the real deal for Barcelona, you know what, it is obvious that he was prepared for the job before he was even appointed as a coach, just imagine what the club was going through before he came but he was able to manage the available players turn them.into wonder boys and the result is their for everyone to see for themselves, what a great coach he is, Barcelona will likely turn into something else soon although the present team has not yet done what the previous teams which Messi was part of has done, I won't judge them there's still time, with Hansi flick they will achieve it in due time.
I will be stressing much about Rashford when the league starts fully, he is one of those players I expect to maintain the upfront of the team.