He's not quite what Koeman will have wanted in the summer, but he hasn't performed too badly this season so far. It's likely, though, that scouts are searching for a promising younger 'keeper.
Coleman firmly remains first choice at right back, with few other options available. He's also the club's second highest top scorer this season, behind Romelu Lukaku, with three goals to his name.
Signed in the summer, Williams has taken no time at all to settle at Goodison Park.