Jon Scheyer has to make these 3 key adjustments with the Sweet 16 on deck for Duke

Duke might be a national title hopeful, but the Blue Devils need to be far better in Washington, D.C.

Jon Scheyer, Duke Blue Devils | Jim Dedmon-Imagn ImagesIt was not easy, but the Duke Blue Devils were the second team in March Madness to officially punch its ticket into the Sweet 16. The No. 1 overall seed in the tournament had its issues with No. 16 Siena in the Round of 64, as well as at times vs. No. 9 TCU in the Round of 32. However, Jon Scheyer's team was able to work some things out advance anyway by winning 71-65 over Siena, and 81-58 over TCU.

While Duke awaits the winner of No. 4 Kansas vs. No. 5 St. John's in the Sweet 16, the Blue Devils have to realize either the Jayhawks or the…