It's true. And there's not much we can do to refute it right now, sad to say.
Back to the main question...no, he's not the only answer. I'd love to see SF get the job, but I'd be all in on Harrison Campbell from ISU if Frost doesn't work out. And there are a handful of others that would work too. Folks just need to be aware that this is not an overnight fix. A lot of the fanbase and alumni are going to have to come to grips with that.