No, anyone wouldn't do for a few months. Not because Ange is doing a great job, far from it, but because very few managers would be willing to take the job without harboring any long-term expectations. We unfortunately don't have our own Heynckes, nor can we promote an assistant the way we did with Jol back in the day.
This drastically limits the room for manoeuvre. If you, like me, think that another Mason stint is pointless at best, then this leaves a permanent mid-season appointment as the only alternative.
A rushed, far from ideal mid-season appointment carries the risk of jeopardizing the next season, in addition to not making a difference in the context of this season. The latter is indeed unlikely, because we sank so low that the only way seems to be up from now on. Hence the shouts of "Anybody could do a better job than this!". But the former still stands I'm afraid, unless you're willing to sack the next guy in the summer as well. If he turns out to be another poor appointment that is.
Assuming that Ange will get the second leg, we might have missed the boat already. I have little faith in Ange as a manager, but at the same time I'm fine with him finishing the season barring an actual relegation battle. Sounds contradictory, but it isn't.