Exactly, Olise was tearing up the Championship as a teenager. Guehi had captioned England at every level and proved that he could perform at the Championship at 20 years of age, so was only going to get better. Wharton also had exploded into view and was the talk of the division.
These were all very simple scouting tasks.
Slightly harder, but not massive risks were:
Eze, clearly talented, but was inconsistent. He did however score a decent amount in his last season with QPR which would have made the decision easier.
Munoz - clearly too good for the league, but could he make the step up?
Richards, not good enough for Bayern. But did ok at Hoffenheim, at the right price worth taking a risk on.
Lacroix, 4 full seasons for Wolsburg, but could he adapt to the physicality of the prem?