I suspect just as before any recent signings the key challenge is how to get the most of Haaland. If he plays in the box alone imo he is goosed. Too static and he is goosed. Stand at the back post for headers, goosed.
The answer imo is to have him in the box as little as possible like the way a basketballer has only a few seconds in the paint.
He needs those tireless runs back. Hopefully the new guys can help him on that front.
(It was souldestroying last season to see him give up running because no one in midfield bothered passing. Why I want the chef offenders replaced in the starting 11 or gone - Akanji, Dias, Bernardo, Gundogan, Kovacic etc would just not look up when in midfield. Hopefully that's gone this season)