I know Swanson isn't an insider, but i did see where he said "yes" when asked to confirm if Hutch from TOS said that he wouldn't say anything was 100%, but he was over 95% confident Gruden would be next HC at Tennessee.
I thought I seen someone in here say Hutch possibly has connections to the Gruden family in some way. If he does and he said that, I think that's a very good sign.
That plus Brice saying he can confirm that Gruden has reached out to either Dale Jones or Tee Martin about his coaching staff, this seems really real! Gruden would not be contacting them if he wasn't at least making an attempt at being a HC somewhere.