It's not arrogance, it's an opinion. Liverpool will be strong, Spurs will be strong. Chelsea will be a mess IMO.
Koulibaly is not much of an upgrade on Rudiger, if at all.
Cucurella is an upgrade yes but £63m on an unnecessary player when they still have huge holes in the squad? Hm.
IF they sign de Jong and Aubameyang they will be good players but Auba is hardly a guaranteed success and Frenkie will be on monstrous wages. Also Frenkie is another player they don't really need when there are others they do.
Scattergun is absolutely the correct way to describe them with the number of targets they have gone through.
Koundé, Kimpembe, Aké, Dembélé, Lewandowski, Ronaldo, Neymar, Raphinha, de Ligt, Jesus, Laporte, Gnabry
They are going for every big name on the market and failing on most of them, their transfer strategy does NOT scream "I have a plan, I know what I'm doing", it screams "scattergun".
My prediction is they will miss out on top 4 and Tuchel will be the first top 6 manager to lose their job.