I'd agree with this, and with Angelman's comment that he knows he wasn't good enough. It struck me he looked miserable because he wasn't contributing and struggled to do so. Not sure what the answer is, but having not seen him in any pre-season games or noticed him in any training photographs he must definitely be on his way.
At least he will understand the reason for being moved on, unlike Charlie Austin, who doesn't. Having seen Che Adams in action underlined how little the latter contributed last season.