Mitts IS a fine keeper, who happened to have a crap game. Good god, even Banks, Shilton,Clemence, Schmeichel and Seaman had the odd poor game. I think that is the first time he has failed the club. good keepers don't turn bad overnight. They lose confidence. Mitts kept superbly last year at the end of the season and kept Wilko on the bench on merit.
The problems are if a keeper has a poor game, you lose and blame him. if a striker has a poor game, you still lose and blame the defence.
Having said that, Mitts confidence must be shattered, so a recall for Wilko can be expected.