The only real job of a coach is to get the best out of the players. Unless he said in the interview that the squad was a bunch if crap and I expect to be relegated whatever I do then he needs to accept responsibility for his failure.
Similarly Jose. He publicly stated that he wanted the chance to work with our squad. He didn't improve us a jot despite spending £100m or so on new players.
The obvious point is any player can be coached to be so much more than the sum of their parts, for example look at the various Southampton players like Schneiderlin, Shaw, Rodriguez and Austin who looked like worldbeaters when Poch was coaching them, yet once they moved away from his coaching they were much of a muchness at their new clubs
And this is something that really needs to be asked about the ubermensch, because I have no idea what coaching our players were getting because there's no evidence of
anything from them on the pitch. They can't have been working hard on their fitness as they regularly look gassed by the 80th minute (and often earlier), they clearly haven't been coached on defensive drills as the same errors happened again and again, they weren't coached on set pieces as we were disastrous at both ends of the pitch, they weren't taught the "win at all costs" mentality as we weren't hurling ourselves to the ground in the opponent's penalty area when we needed an equaliser, so what the hell were we working on?
And this is the thing, there's certainly players in our squad who can be coached into being useful as there's evidence of them being trained to being useful either at other clubs or even while playing for us, and that's what really needs to be addressed because there's some players who can walk into the team and perform every day of the week (Kane, Son), some who clearly need coaching to make them effective (Lo Celso, Bergwijn, Reguilon, Ndombele, Rodon, Tanganga) and some who we have to accept are write-offs at this point (Aurier, Sissoko, Dier)