Wasn't this just asked a few threads down. I will answer again

For whatever reason some think Nebraska fans aren't patient. To the contrary, we have been very patient, 10-15 years patient. Very few expect a coach to come in here and get a national title is 3 or 4 years. Hell we game Bo 7 years of mediocrity. Riley would still be here if he showed improvement from year 1 to year 3. This team went backwards and backwards rapidly. Anybody with half a brain for football could see this team was weak and soft and just really didn't care. 10 more years would not have made a difference.
So to answer your question, yes I think fan will be tolerant of poor records the next 1-3 years. As long as the team shows growth and progress.