Chelsea's transfer window so far is very much a reality not a fantasy.
Call me an optimist but I'm finding their transfer window quite weird.
Sure, they've signed big names, but attack wasn't their weakness as it is.
Werner scored 28 goals, Ziyech had 6 and Havertz scored 12.
Currently, they had Giroud+Tammy who scored 23, Willian who scored 9 and Mount scored 7. That's a gain of 7 goals and that is assuming all 3 of them are a success and are able to replicate their performances in PL, which sounds unlikely. Werner's not going to face those high lines here (and he's going to score 18-22 goals IMO based on what the best best strikers in PL have been getting in last 2 seasons). You'd say at the absolute maximum, they'd score 75-80 goals. They would have scored around that many (+/- 2/3 goals) even had they not signed Havertz.
However, now let's get to defence, they conceded 54. Chilwell is not a defender who'd help them save a lot of goals (he's an upgrade on Alonso, but he's suspect defensively), and I believe Thiago Silva isn't what they exactly for their high line defence. I'd have preferred to spend the Havertz money on someone like a Koulibaly and a GK instead.
Add to that, Kante doesn't suit their system, Jorginho is out of favour. So, I'm sorry but I'm struggling to understand why this insanely heavy investment on attack when they have a top 4 worthy attack. And before someone points out that they're looking to challenge for the title, they're more likely to fall out of top 4 with that defence than win a title this coming season