Never heard of him, so looking at:
https://en.wikipedia.org/wiki/Dave_Joerger
His college ties are to the Moorhead colleges, and his entire coaching experience is with professional teams.
Biggest thing: he's never had to recruit. That is a whole thing that you need to build up experience doing.
But also importantly: he's never had to deal with players who aren't professionals. Guys who you can just cut, if they don't do what you want. And so on.
Not trying to crap on your idea. Moreso saying, would he have any interest at all?