Things can change very quickly in college FB. Before the season, if I had suggested Northwestern would be better than Michigan St this year, people would have said I was nuts.
Having said that, Claeys is facing some issues if he wants to keep his job: New AD with no ties to Claeys; disgruntled fan base; falling attendance; drop in season-ticket sales; trouble raising funds for big athletics project; more off-field issues with players; and a team that seems to be failing to meet expectations. Add in the fact that the coach has a very small buyout by D1 College FB terms, and I would not be shocked if the AD was at least thinking about making a coaching change.
If they do make a change, traditionally teams look for someone who is perceived as the opposite of the current coach. Claeys comes off as pretty bland, so odds are the next coach will be more of a high-energy, firebrand type.