That's a little harsh. You don't turn down that job regardless of who you are.Or, you know, shameless self-centricity? Too high opinion of self and last but not east being delusional.
There is nothing wrong with David Moyes as a person (well, that's an assumption but still), he was just not cut out for this job.
It's fairly obvious that the plan was to let him grow into the job in order for us to keep our identity, stability and all that bullshit. Unfortunately he was just way off the mark and made us a laughing stock in just one season...
Thankfully it was a bit of a wake up call and we've finally made steps to becoming a modern football club.