Board work, 3-point shot could fuel upsets of top NCAA seeds

Duke's Zion Williamson, center, loses the ball as he is trapped by Florida State's David Nichols, right, and Raiquan Gray, left, during the first half of the NCAA college basketball championship game of the Atlantic Coast Conference tournament in Charlotte, N.C., Saturday, March 16, 2019. (AP Photo/Chuck Burton)

Kentucky head coach John Calipari addresses the media on his back porch after watching the NCAA college basketball selection show at his home in Lexington, Ky., Sunday, March 17, 2019. (AP Photo/James Crisp)

North Carolina's Luke Maye (32) shots over Louisville's Jordan Nwora (33) during the first half of an NCAA college basketball game in the Atlantic Coast Conference tournament in Charlotte, N.C., Thursday, March 14, 2019. (AP Photo/Chuck Burton)

Tennessee head coach Rick Barnes watches a replay on the Jumbotron during the second half of an NCAA college basketball game against Auburn Saturday, March 9, 2019, in Auburn, Ala. (AP Photo/Julie Bennett)

Michigan State's Matt McQuaid (20) celebrates after shooting a 3-point basket during the second half of an NCAA college basketball championship game against Michigan in the Big Ten Conference tournament, Sunday, March 17, 2019, in Chicago. (AP Photo/Kiichiro Sato)

Michigan's Jordan Poole (2) walks off the court after the team's 65-60 loss to Michigan State in an NCAA college basketball championship game in the Big Ten Conference tournament, Sunday, March 17, 2019, in Chicago. (AP Photo/Kiichiro Sato)

Gonzaga's Rui Hachimura shoots around St. Mary's Matthias Tass, left, and St. Mary's Jordan Hunter during the first half of an NCAA college basketball game for the West Coast Conference men's tournament title, Tuesday, March 12, 2019, in Las Vegas. (AP Photo/John Locher)

Virginia head coach Tony Bennett directs his team against North Carolina State during the first half of an NCAA college basketball game in the Atlantic Coast Conference tournament in Charlotte, N.C., Thursday, March 14, 2019. (AP Photo/Nell Redmond)