If Mediation hasn't reached a settlement by May 23rd, 24th, 25th, then Mediation will probably have failed, in that it would have failed to reach a in the middle settlement in a reasonable short period of time, causing Mediation or a court to be delayed long enough to endanger possibly missing deadlines.
PAC 12 can get either Texas St, New Mexico St, or already has them under lock, wraps, with a clause that let's the PAC 12 replace them with UNLV or Airforce or Memphis or Tulane, etc, if able, and if not, then Texas St, New Mexico St get added at full share, and then gets announced.
If that doesn't happen, there is also the remote possibility WSU, Ore St, PAC 12, etc, can make the case to the NCAA that MWC playing hard ball in the scheduling agreement, leveling poaching fees, the lawsuit, Mediation, mitigating circumstances, etc, prevented, made it harder for WSU, Ore St to make the July deadline for PAC 12 to be a conference, and that the conference should be allowed to finish lawsuit, Mediation, and then have a 2 to 4 to 6 month extension on the deadline to become a conference, so that the MWC can't use the approaching deadline to force PAC 12 to accept unfair, illegal poaching fees, etc.
That said, even if that happens, Teresa Gould has failed miserably.
Teresa Gould, and Lawyers, PAC 12 leadership should be able to reach a settlement, and move on. Failure to do so, some of the blame might be on MWC, especially if they are being unreasonable, not compromising, etc. But most to almost all of the blame should be on Teresa and her staff, legal team, leaders, etc, for lack of leadership, lack of negotiation skills.
Any competent leader, commish, etc, should be able, should have been able to easily not do the merger with MWC, talk MWC into not levying the poaching fees in the first place, getting the MWC 5, BSU, FSU, SDSU, Utah St, CSU, and 1 of either Memphis, Tulane, USF, UTSA, UNLV, Texas St, etc, to join the PAC 12, etc.
No competent Commish should FCK everything up and FCK everything up this badly.