I suppose it comes down to who is willing to sit on their heels and finish mid table for the next 10 years until someone comes along with a deep pocket and takes over ownership. Sure Moyes isn't doing a bad job with what he's got, but we're going to be playing with the same quality of players in a budget squad, using the same conservative tactics to scrape draws and lucky wins and finishing mid table and not win any trophies until Moyes gives it in and someone else has a crack.
Surely you'd rather see someone else step in and at least have some variation? We may slide down to the bottom half, or we might hit Europa and find some investors. But the same mediocrity that's been served for the last ten years is only going to continue until something changes, and the only interchangable factor at this stage between the squad and the management is Moyes.