I'm a 49ers fan so yeah, this is of interest to me.
My take is that Harbaugh is probably an a-hole, but lots of super-successful people are a-holes. Pete Carroll strikes me as one too. But I don't know either, so I can't really say. What I can say is that Harbaugh came within one play of making the Super Bowl his first year, one play (or one P.I. call, take your pick) of winning it his second year, and one play of winning it again this year (if you believe as I do that the 49ers would have taken the Broncos apart as easily as the Seahawks did). I'd love to see a different O.C., and I wish Harbaugh managed games better, but whatever his flaws, he's undisputedly one of the best head coaches in the game.
What kind of football team in their right mind gets rid of a guy like that? While I don't think the Yorks are smart football people, I don't think they're really stupid enough to let him go. But they may be stupid enough to let this kind of story float around during contract talks, and Harbaugh's is coming up. They'll probably do the same with Kaepernick.
As for the Parcells angle, yeah, alpha type coaches always seem to want total control, and it never seems to work out for them. Even Jordan needed his Pippen. The 49er suits did a pretty good job assembling talent before Harbaugh came around. He should accept that and try to find a way to get along, IMHO.
The whole story is still fuzzy, and certainly fishy. Cleveland? Come on. Gonna be interesting to see what really happened so far, and how it plays out.
PS OMM, Singletary was a great player and is a good man, but he was totally out of his depth has a head coach.