The Athletic has a couple good stories on the job and the firing today. Basically Peyton is coming in on the search committee, and the plan is to have the intern guy run the program until the new AD is hired.
From there they mentioned Freeze, but they would have to get an OK from the SEC to hire him, the guy at Coastal, the coach at Cincinnati and a few others.
They also pointed out that this is a difficult time of the year to be hiring a new coach, and that no one is going to take the job without the AD being hired first. So it may be a while before they hire anyone.