There's already some worrying signs in the data which sort of back up what everyone can see.
We've taken a defensive approach and this, over the 4 games so far, means we have 4 teams who have conceded more xG than us: Southampton, Ipswich, West Ham, and Everton. So probably the teams we expect to be our peers. Note that two of these teams have already played Man City though so data will be skewed with the small sample.
Attacking wise it's looking pretty bleak. Only Ipswich have created less xG over their games, and they've played both Liverpool and Man City. The sacrifice isn't giving us much of a benefit defensively and is completely neutering our attacking potential.
This is also ignoring game state. Fairly sure the xG we have generated has mostly been once we're a goal or two down. We've also lost on xG in each of the 4 league games.
I know some don't like this data, but it's backing up all the subjective frustrations and showing some really worrying signs.