The demographics and the whole recruiting picture has changed since then.
NE has fewer people especially young people that dream of being a walk on. Teams can no longer stockpile players. There are now multiple universities in FL that soak up potential recruits. TX has multiple universities with now respectable programs.
Why turn down an offer from sunny CA, USC, Stanford, UCLA, and those lovely CA ladies and come to Lincoln? OR sucks up recruits from CA that may not academically qualify for the above schools.
The NE brand of national championships is long gone for young people who do not live in NE.
It may be time to adjust to the new reality and hope to win the West as a meaningful and satisfying goal.
Having a new coach, President and AD state that a national championship is the only goal does no one in NE any favors.
Those days are gone and are not coming back.
NE will have to find other ways to be "relevant" on the national stage than the football team.