I'd start worrying about Haaland too...Sterling wanted that big deal which we didn't believe he was worth, proven right.
Sane wasn't / isn't the same since injury and hasn't fulfilled his potential, don't think the Club were too bothered.
Can't be too careful nowadays, madness to allow an exodus of first team quality players. No guarantee of replacements succeeding no matter how much you spend.
I worry about Laporte, Dias and Foden, sadly Bernardo is a lost cause and he should have been sold in the summer.