The referee list contains name, email, and home city and state. No conference affiliation at all, and geography mostly determines who is called. There does seem to relationships, be they for a team or a conference, that develops over the years.
I understand there are ways for coaches to formally air concerns, and pretty sure those go to the Coordinator of Officials.
There's been a lot of false claims about Mike Hagerty, or how refs get assigned. I knew a lot of how the assigning operated, but I decided to get clarification on those points that I wasn't certain of.
While I'm replying to Roar's post, he's actually mostly correct. I'm using his post to build upon, and to correct a number of the mistakes I've seen concerning the ref at the Ok. St. dual and how refs get assigned.
Each conference contracts with a ref assignor. The contract provides that the assignor gets paid for each dual for which he assigns, and also provides that the assignor will assign refs to each dual.
College refs can work with multiple assignors, and many of them do. However, they generally assign the same core group of refs to league matches (and hence why most B1G fans start to recognize the refs that work their duals).
As Oklahoma State was the home team, the Big 12 assignor is the individual that assigned the refs for the PSU - Ok. St. dual.
While college reffing pays a decent amount per match, it's not enough to make a living. As such, while refs are free to align with any assignor they want, most try to work with assignors that assign in the general area in which they live.
So it should surprise nobody that Mike Hagerty, who is an excellent ref who lives in Missouri, and is part of the Big 12 assignor's pod, was assigned to be the lead ref in the PSU - Ok. St. dual. In addition, it should not be a surprise that he's worked quite a few Big 12 tournaments.
If either team had issues with the reffing, they would have submitted a report to the assignor, as well as to the Coordinator of Officials.
I should also note that NCAAs are not assigned by a assignor affiliated with the host school. The assignment process for NCAAs is much different.