I've said it before, if any of these organizations had a brain in their heads (which they don't) they'd make a run for Pioli/McDaniels/Cassel as a package deal. The three would provide instant credibility to an organization. By picking up McDaniels and Cassel, a team is gaurenteed to have a QB who fits the system and knows the playbook.
Detroit would be an ideal fit, in my mind. They already have a Randy Moss clone in Calvin Johnson and a pretty solid young running back, along with two 1st round picks. Why draft a college QB, an unproven player who needs to learn a system, learn the speed of the NFL, etc, when you could bring in a proven guy? Why not draft a LT with the first pick instead, and build around your QB/WR combo?
Of course these are the Lions, so it won't happen.