There's no situation whatsoever that I'd be happy with Hamilton starting, the whole 'he might look better with a settled defence argument' is straw clutching at best. The guy's been given numerous chances and has look a nervous wreck with a mistake in him each time. You just had to look at Cammy's reaction to his excellent save against St Mirren, he was almost over praising him.
I wouldn't want Wighton back either, I feel sorry for him because his progression has undoubtedly stalled, but I don't have faith that he won't be invisible for the majority of games. We can do better.