Well, the tempting thing is to say it's all the owner's fault, but you know what? The owner's only job is to find somebody who knows what he's doing to run the team, hire him, then sign the checks whenever he tells you to sign the checks. Then, if it turns out the guy you hired DOESN'T know what he's doing, FIRE HIM AND HIRE SOMEBODY ELSE.
The Fords' main failing is strictly in that last department. They held on to Russ Thomas, an idiot and a skinflint (back when the GM had the discretion to be a skinflint or not) about 15 years longer than they should have, they held on to Wayne Fontes about 132 games longer than they should have...