He's about as good a coach as you're going to get, maybe ever. Depends on how much he can build you up, and how long he sticks around.
He's not just the best coach that Vandy can get; he's a damn good coach that any program should want.
You have a 6-6 team that has traditionally blown donkey balls, yet you currently have the 24th best recruiting class in the nation?
You only have talent which was recruited by the previous coach, and that talent doesn't even compare to what Franklin is recruiting now, yet you almost beat Georgia, Arkansas, Florida, and Tennessee? In his first year, he was 19 points away from a 10-2 record...not at a top tier or average program, but shitty ass Vanderbilt.
It was a very smart move, not because Franklin is an average coach that could help Vanderbilt or some other shitty team; it was a very smart move because Franklin is a very good coach that could probably do well even at top tier programs.
And we need to shove so much money up his ass that he never wants to leave.