Ake isn't a fantastic signing but if it means we will see less of Sarr, I am for it. People are so quick to discredit him as a player but when the club that has run away with domestic titles in the past 5 seasons are gutted to see him leave, we aren't exactly picking up scraps here. He'll provide us experience in age and in the league. Not to worst thing in the world. Little risk here.
However, only one person to point at if this somehow fails. Tuchel.