Obviously need to go, no doubt about it.
Keepers make mistakes, but no one at the top level makes them that often. He's overall a poor GK at the moment, and even on a free I doubt he'll find a top club going for him. His passing is poor, his command in the box is poor, he avoids crosses like a plague, mentally very weak and his only redeeming quality is a great reaction save here and there. The new era requires us to be more ruthless. We won't close the gap on city by having a major weakness in our team like him.