There's no doubt that Higdon was a major, major disappointment last season. Never got fit, appeared to have a bad attitude and then was injury prone.
Higdon's form in Holland and Scotland would suggest that he clearly underperformed and that, at League 1 level, he should be doing better.
Higdon did himself no favours but Clough didn't help him either, seldom playing Higdon alongside a recognised strike partner. Ultimately Higdon has himself to blame but I think he could fare better under Adkins.
He'll always lack mobility, but he does know where the goal is and is a presence. I'd be intrigued to see how Higdon would fair if paired up top with Matt Done, or even Che Adams for example.
Higdon could have no complaints if he was moved on in pre-season. But if he comes back from the holidays fit, and trimmer, then maybe Adkins could get the big man's mind right?