Two different situations.
CPE sounds like an Academy boy who was never going quite to make the grade.
As for Johnston, O.K. we're hoping for another Varney moment, but should we start to throttle back on our search for 'gems' from the fifth thru eighth tiers of English soccer? Nothing has worked recently, with the tricky winger from Ebbsfleet giving way to another similar player, but to no avail. And Vadaine? guess we've developed him for Mansfield.
Jury is out on Ant Stewart, but at least he's from a Football League side.
Plenty of bargains up here in the Highland Clearances, though. But a it late for midfielder Mallan, after his goal of the century.