Agreed, I don't rate Cullen at all, but he is decent off the ball and (comparative to Vip), pretty nippy.
I'm not claiming that springing a ball out wide is a talent of his game, I'm highlighting that it's all he does, without being able to show any of his finishing ability. I honestly can't remember him having a decent change since he's been here other than his goal against Preston.
Cutting our losses on a highly rated striker who has been less than 5 full games is ridiculously short sighted. If he was air kicking at the end of the season, fair enough, but he's played 418 minutes.
On that, Williams needs to sort out who starts up front. Doesn't help either of them to rotate Cullen and Vip every week. Stick with Vip, actually out some crosses into him, and we might be on to something.