Or you could look at it another way.
Arsenal's only confirmed signing so far is Raya, who was at the club already last season and has just joined permanently.
Liverpool haven't signed anyone and at the moment there don't appear to be strong links with anyone, either. They've also changed manager which can go way or the other.
Villa have lost one of their best players in Luiz and replaced him with Everton's Onana. Diaby was only there a year but looked decent, and has moved on already. Maatsen may prove to be a good player, bags of potential there. Ross Barkley on a free adds some depth, as do guys they got from Juventus, but we're not talking game changers here.
That's the Champions League clubs, so those you'd consider our main rivals. So it's frustrating that City are quiet so far, but no-one else is taking great leaps so far on terms of squad quality or depth, either.