March 6th: If everyone returns next year, why will 2018-19 be different than the 2014-15 season, if it is at all?

-You remember 2014-15—it came with Nebrasketball being ranked in the preseason, with Terran Petteway, Walter Pitchford and Shavon Shields returning—but they failed miserably, and ended up losing straight games to close the year
-Similar situation for Nebraska in 2018-19, as long as the team stay together. James Palmer, Isaac Copeland, Glynn Watson, and company all return—only Anton Gill, Evan Taylor and Duby Okeke move on for graduation
-How do you avoid what happened in 2014-15 and build on this year’s success, and not be like this year’s Northwestern/Minnesota/Iowa?