Judging by how these coaching transitions go, I doubt that Tubs was truly all that interested in ku, regardless of what he told the Star. Was probably just throwing his name out there to see if he could get any feelers from other schools.
In that same vein, I'm guessing someone in ku AD office leaked the Harbaugh stuff to speed up the process with Gill.
Nothing is what it seems when it comes to coach searches. Except when Weefer is involved and it is all fracked up, then it is exactly what it seems.