I disagree; I think this club is something you never quite get over if youhave had the honour of being it's manager. I haven't had the chance to read the OP, but that either Warburton, or maybe even Le Guen every wish they could do it differently and spend a considerable time thinking about it wouldn't surprise me.
The reputation damage appears to have been a tougher one for Warburton to get over given he seems to be on a continual media tour of "it wasnae me I'm actually talented"
It isn't changing, he isn't coming back....he knows it.... this isn't about regret its about wanting another job and using the reputation of Rangers to try and get one.