I dont pay as much attention to any school more than I do Oregon but I know there are many examples, including some listed above, K-State, but Oregon was really really bad for a long time. Look at there season records and pay attention tp the 20 plus year span between about 1965-1988.
https://en.wikipedia.org/wiki/List_of_Oregon_Ducks_football_seasons
Also Oregon St from about 1972-1999
https://en.wikipedia.org/wiki/List_of_Oregon_Ducks_football_seasons
Both of these Oregon programs were bad for a really long time, OSU hasnt been anywhere close to UO but have had some good seasons.
Nothing represents how bad these programs were as much at the 1983 Civil War their annual rivalry game where they tied 0-0. The game played in bad weather had 11 TO's and 4 missed FG's.