Yes, Rod Marinelli wishes his daughter had married a better defensive coordinator, because if she had, Marinelli's odds of remaining employed would be much higher going into the offseason.
That being said, the whole flap over the "insulting personal question" a reporter asked is just so much smoke-blowing from a coach looking to divert attention from his team and/or his miserable record coaching it.
It was a joke. It was even a mildly funny joke. And for Marinelli to be crucifying the reporter who asked it, and potentially damaging the guy's career long-term, is not a terribly noble thing. It's not like the Lions' season can be salvaged; the best that can be hoped for is to go down with dignity, and there's none in evidence here.