Might be in the minority but I actually preferred O'Connell to Harbaugh. Just wanting something fresh and new with a young GM and Coach starting from scratch and building the team up. Even if it fails you still had to do this.
It seems like Harbaugh thought all he had to do was show up and he had the job, but they actually put him through the entire interview process like any other candidate and he got a bit butthurt, lol. Also there's the rumors one of the minority owners was never a fan, but I'm sure if KAM and the Wilf's wanted him bad enough that guy would have been overruled.