There is a lot of confusion in this thread, especially for newcomers. Ones who have been here a while can probably ignore this, but much of the confusion and contradicting information can be harmonized by understanding a few basic concepts regarding who has the authority to do what with respect to the university. The easiest way to explain this is to state what appears to have happened thus far:
A large faction of boosters (85%, lead by Ergen) want JG. At some point, this group contacted JG and reached an agreement in principle on what it would take for JG to take the job (i.e., if the university agrees to all of these things, JG agrees that he would take the job). This is the done deal that MIT refers to. However, this is not an actual agreement with the university, as the boosters lack the legal authority to enter into an agreement on behalf of the university. But there is a done deal in the sense that it is known what it will take to get JG. Thus the media report that the university has offered JG $10M; bad reporting, as the agreement in question was not likely offered by the university officially, but the agreement in principle with the boosters.
So, there is an agreement in principal with JG. However, the booster faction knows (based on the events of 2012) that the trick is getting the university to officially agree to the deal (because of resistance from the other 15% of boosters, including Haslam). Thus they put in place a series of incentives to induce the university and the 15% holdout boosters to agree, including withdrawal of booster money (by the 85%); venture capital for the academic side; inciting the fan base into a frenzy; something as yet unknown by PM; and presumably some other things of which we are not yet aware.
It would appear that we are now at the stage of getting the university to officially agree to the agreement in principle established between JG and the 85% booster faction. As anticipated, there is resistance. The universitys official representatives (Currie, backed by Haslam) balk at the agreement in principle. Certain media sources and/or insiders report that other candidates are under consideration, and that the JG deal is dead, or that no talks have ever been had with JG, etc. Those reports are true in the sense that the university (i.e., its official representatives) have had no part in the agreement in principle and have initially rejected it. Further, official university representatives have had no direct contract with Gruden. The same is likely true in 2012 and would explain why JG might say he was never contacted then a true statement if it is recognized that hes referring to official university representatives.
Essentially, if you consider who has the official capacity to do what, the picture can be largely clarified. It seems that we are currently at the stage where the 85% booster faction is applying their leverage to convince the university itself (i.e., official university representatives) to agree to the agreement in principle with JG. Until that either fails or succeeds, BJ will likely remain the head coach.