Right but the point is it took him 4 years.
You're arguing we need to sack him to keep us up this year, as if the moment we start dropping down the table, he'll panic and not cope. That didn't happen, in 3 out of 4 relegation fights he had enough to keep them up despite his team being in awful form coming into spring. He is comfortable in those situations, it's his backyard.
Now I don't think we'll seriously be in one this season but if we are, Roberto seems like he's the streetwise guy who can get us out of it as much as the likes of pulis or others.
I'm not saying he'll definitely take us down, I'm just saying I don't trust him in a relegation fight, at all. So with that said, I'd rather not run the risk.
If we can't beat either WBA or Hull, then for me his position becomes intolerable. We're not Wigan. This is the most talented Everton side on paper we've had since the 80s. The capitulation this season has been as bad, if not worse, than Moyes at United, which is remarkable. Big sides like us shouldn't tolerate it, just because we've seen it before 15 years ago.