Hubbs and Co. have a job to do. A major part of that job is to make their employer happy, just like everyone else. Their employer is the UTAD. Hiring and firing of coaches takes a really healthy portion of public relations. There's a timeline that needs to happen through all of this. If Hubb's is aware who the new coach will be and shares that information to his subscribers before his boss wants him to he will find himself out of a job soon after. Does that make sense? So he needs to dodge questions, tell stories and wait it out until the time is right, per his bosses.
I'll give you an example. There was a recruit who announced for UT a few months back (I forget who it was) and VQ had made a video well in advance of his commitment before telling anyone that this would happen. So, guys like me were on VQ asking, "Is so and so going to be a Vol?" And Hubbs and co. would respond with, "Not really sure. It looks good but only time will tell. Blah blah blah" Meanwhile they had already made a video of that recruit's verbal announcement to UT. And waited until the recruit wanted them to release it.
I believe the same thing is going on here with "the coaching search".