Buffoon is harsh. He's just not hacked it at this level. Fair enough, you don't know til you're tried. Time to gracefully drop a division or move to Scotland.
More to the point - why?
CMS whole game is based on running onto a through ball past a cack-handed defender. That gig may well have worked in League One, and will always work at any level in Scotland, but its simply not enough to hack it in the Championship, let alone the Premier League.