That is undoubtedly true, and some of the criticism he receives is fair, but we knew we were taking on a novice manager and as such we should have realistic expectations of what he can achieve and over what time period.
I think the fairest criticism of Lampard is that he has been unable to resolve our defensive problems.
Truthfully, there has been no improvement as yet, perhaps with the exception of the recent defensive display against Palace, so i understand the concern.
But, he has not yet had the time this season, with the new players, to show if can improve the team's defensive woes. There is much to improve on and he really does need to show fans this season that he can improve the team, but he also needs more than 5 PL games.
38 PL games would seem reasonable.
We can do better than have Lampard