Don't listen to us: just do the series you want to do, and the ratings will speak for themselves.
Of course, the problem with that is if the ratings really suck, you're suddenly in a serious race against time trying to salvage something before the whole enterprise implodes because no one's willing to watch it anymore.
And every time that happens, it makes studios a little less likely to be interested in trying again in the future.
The problem is, the "Core" fans are too small an audience, so, if you're doing so poorly that you need to bow down to them, you have already lost, it's already too late.
One Day I hope to be the Man my Cat thinks I am
Where are we going? And why are we in this Handbasket?