I do expect there to be a bunch of HC openings this offseason. Definitely more than we saw this past offseason which only had 5.
I think the big names will be the ones who used Arizona like a practice round last year. Brian Flores, Dan Quinn and Lou Anarumo. These guys will be in high demand and will get interviews wherever they want. Others older coaches with experience like Todd Monkin or Jim Harbaugh will get interviews as well among the other usual suspects.
However I do think a bunch of the younger more inexperienced coordinators may get some interviews as well. It wouldn't shock me if Petzing got one or two interviews. Especially if the offense has success with Kyler under center over the next couple of weeks. I don't think he will go anywhere soon. However it wouldn't shock me if he gets some serious interviews 2-3 years down the road.