I think the club to this day, still hasn't quite figured out how the transfermarket works in this day and age. It's a sellers market, year after year we get our trousers pulled down because we go in their desperately looking to solve our woes rather than looking for good opportunities.
It's how we've ended up with the likes of Antony. We as a club decided we desperately needed a RW (despite buying 3 in the previous 2 summer windows - Pellistri, Sancho & Amad). Because of this notion, we stupidly overpaid for what we perceived was the best option on the market - in reality, there wasn't any real good option available that summer, so why not just make do with what we've got? We just lack that sort of foresight as a club throughout.
What was available that summer, was a top class a CF prospect in Isak. But because we prioritised the RW position, we didn't even bother competing for him. Then we went back into the market looking for CFs when the market again hasn't been favourable - and that's how we've ended vastly overpaying for Hojlund.
If Chelsea used this logic, they don't end up with Cole Palmer - because they had other immediate needs, and had also somehow brought Nkunku for the same position. I'm not suggesting the way forward is to be as insane as Chelsea, but we need to realise that it's not a buyers market - but you need to strike when top talent is available.