I think we are mincing words a bit, because I am not disagreeing with much of what you have written. Ultimately, Kliavkoff failed at his job. Period.His fault for accepting the job.
I think no one is gonna argue that Kliavkoff wasn't dealt a bad hand to begin with, Nik and I both laid out the problems above, he a) had to change the P12 leadership's thinking and wake them up from the Larry Scott dreamland that all they had to do was keep the course and their patience would be rewarded while they were losing ground on their competitors every single day as the P12 was facing an existential threat if they waited any longer with the TV deals, b) keep programs that were shopping around in the fold by doing so and c) ideally try to poach from the Big 12 when it was very vulnerable after the OU/UT departures. He did none of that.
Yormark was dealt an even worse hand as his 2 premier programs had just jumped ship, but he did a) and that allowed him to do c) as the P12 was still daydreaming.
However, I actually believe there were elements of Yormark’s job that were easier (as @onealcd wrote above). The Big 12 was largely unified, even if that was borne out of having few options. PAC 12 was not, and a fractured Board of Directors (I.e. the presidents) is a disaster to work with.
In the end, we are discussing assignment of blame. I just happen to split it 75% presidents / 25% commissioner.