Agreed, but...
Lane hasn't signed a long-term extension because Mississippi state laws prevent state employee contracts longer than four (4) years. Kiffin signed a four-year deal when he left FAU, and was adjusted/extended after Year 1. A revised four-year deal. Best Ole Miss could do is repeat the process and adjust/extend his current contact for one additional season. They could pay him whatever they want per year, as far as I know, but they cannot offer him a 10yr/$80-100M type deal like we've seen for Tucker, Riley, and Kelly.
From an article regarding his original contract signing at Ole Miss:
As is the maximum length deal allowed by Mississippi law, Kiffin receives a four-year, $16.2 million base salary with the university.
Regarding Mario...if he loses the PAC12CG would he leave Oregon before their bowl game? If he wins, would be leave before the Rose Bowl?