If he goes now, it'll make no difference. Nobody expects us to actually get anything from these last games, so even if a replacement came in, they could hardly do a worse job. It'd make me the most excited I'd been in a while about Villa if they gave the guy his cards. He's abysmal.
As for the match, we were fucking crap from top to toe. If we get relegated, which is actually looking pretty likely, we can't blame misfortune, unless it's the misfortune of being bought by a billionaire who's lost interest in everything to do with us.