I think he lost all motivation in the job long before Rotherham, once he found out he'd been lied to.
Granted, he wasn't the best but I am pretty sure he'll be a success elsewhere, in better circumstances.
"It's a relief to finally be relegated, it's been looking over us for weeks. The fans negativity hasn't helped this season. It's been a major factor. But, we'll have a good drink tonight then have a go at the last few games."
Genuine quote from Joleon Lescott.