Let's not beat around the bush, Southampton save aside (and a taller keeper might not have made it look as good), he was absolutely dreadful after lockdown. Seriously needs the competition to get him to raise his game.
Personally I'd rather have a good big 'un, than a good little 'un. Walton fits the bill height wise but he is good enough, and more importantly (to Potter I expect) can he kick it as well?