With this now being firmly Holly's team, she MAY have a chance to do things a bit differently from last year. We really don't know everything that was going on behind the scenes or what Holly ended up having to do versus was expected to do preseason, etc.
Having said that, I don't think she's the best HC available (i.e., who would make him/herself available for LV job), and although this direction may make the most immediate sense, it's not a five-year plan by any means. If I'm Tennessee, I have a strategy that includes a national coaching search if and at such time it becomes clear that Holly is not the best long-term fit.