I simply don't think that the GK is no 1 priority. We still hold the highest no of clean sheets in the EPL. Sure we rely heavily on defence for that. However while DDG can perform significantly better when playing alongside the likes of Varane, Martinez and probably Timber as opposed to Maguire can the same be said about Maguire? Would he be able to do well in a high line defence if he had a ball playing goalkeeper instead of DDG? Cause I can still see him messing up due to his lack of pace and awareness. He'd still ask Goalkeepers for the ball and being the senior CB he is (and captain) he would still be listened to.
I'd say let's get rid of those who had become a meme at this club. I am referring to the likes of Martial, Jones, Maguire and Sancho. Then once the standard had been raised then we can tackle those who had been meah ie the likes of AWB, DDG and co. Of course my argument changes completely if DDG refuse to take a significant pay cut.