There are many unseen and publicly unknown factors that are weighed into hiring and firing decisions. To be fair to the Athletic Directors, (Osborne, Byrne, Eichorst, etc.) all had UNL senior admin looking over their shoulders and probably had the final say (up or down) on any and all the H.C. hires and pay and other terms involved. We don't know but I would certainly suspect that things like maximum compensation were a major consideration in who and how and when we could hire and or fire any of them. If the A.D. is limited on the $$$ he can offer, he is clearly limited in the pool of potential candidates that may be even offered, much less hired.
We as fans want to hire the very best and the money is less than relevant. In fact, most of us feel we ought to pay whatever it takes as we see the 'big' picture as being winning championships will more the generate the funds needed to meet our pay obligations, etc. But no doubt there are political (internal to the University certainly) issues within the compensation strata. For example, how many of the long tenured and highly paid UNL professors who don't care at all if there is a football team or sports of any kind, who raise hell when they read the millions of dollars being paid to a 'football coach' of all things. And frankly, the prevailing salaries are in the big picture 'nuts'. We are paying an defensive coordinator upwards of a million a year.
The football program is near and dear to my heart and has been for over 40 years. But there would be many folks who might say it is not worth the trouble and or worry and could care less if they ever played again. I think the joinder to the Big Ten was as much about academics and prestige and so on as it was about sports. In fact, probably more so.