My point is that in the medium to long-term (two or more seasons), I believe that Moyes could stop the rot at Sunderland and stabilise the club.
However, in the short term I wholeheartedly agree that such an upheaval would likely result in the ignominy of Moyes leading them to relegation.
Sunderland have became a club that are entrenched in a repetitive relegation battle; this halts their ability to progress as everything is short-term.
Perhaps in the long run their inevitable relegation and the required period of change that would follow could actually turn their fortunes.
Although I doubt their owner my Mr Short would see it that way as it would diminish his investment even further, but as a club it may do so.
Moyes would be an ideal long-term option if he and the club accepted such a project and realised his own stature; doubt they will though.
They'll bring some one in, have a few knee-jerk overpriced signatures that really don't offer much and they will be in a worse position.