It's the wrong time to get rid.
Of course he deserves credit for some fantastic achievements and I too am astounded by the lack of it from some but he's made awful errors of judgement this season and, seemingly, is too stubborn to admit them. Getting rid of him now however, doesn't really help us.
I'll give him the summer and the start to next season, especially given the injury toll of this one but the football needs to improve. Not just the results, the football. We need an identity and we need to be difficult to beat like we were for so many games under him.
If his attitude to change doesn't alter then he will be gone by Christmas.