The concept of time for a manager is an interesting one for me and I'm less comfortable calling out clubs for not giving a manager time.
If those intimate with the club can see that things like culture is going the wrong direction, and then on-top of that the football is not progressing, then more time isn't going to change that.
I think you can look toward the likes of Ole and Arteta and regardless of results see deeper changes within the club. Never got any of that from Lampard.