2018 NBA Mock Draft 4.0

TUCSON, AZ - MARCH 01: Deandre Ayton #13 of the Arizona Wildcats reacts to a foul call during the second half of the college basketball game against the Stanford Cardinal at McKale Center on March 1, 2018 in Tucson, Arizona. The Wildcats beat the Cardinal 75-67. (Photo by Chris Coduto/Getty Images)
TUCSON, AZ - MARCH 01: Deandre Ayton #13 of the Arizona Wildcats reacts to a foul call during the second half of the college basketball game against the Stanford Cardinal at McKale Center on March 1, 2018 in Tucson, Arizona. The Wildcats beat the Cardinal 75-67. (Photo by Chris Coduto/Getty Images)
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FAYETTEVILLE, AR – FEBRUARY 17: Robert Williams #44 of the Texas A&M Aggies walks down the court with a smile during a game against the Arkansas Razorbacks at Bud Walton Arena on February 17, 2018 in Fayetteville, Arkansas. The Razorbacks defeated the Aggies 94-75. (Photo by Wesley Hitt/Getty Images)
FAYETTEVILLE, AR – FEBRUARY 17: Robert Williams #44 of the Texas A&M Aggies walks down the court with a smile during a game against the Arkansas Razorbacks at Bud Walton Arena on February 17, 2018 in Fayetteville, Arkansas. The Razorbacks defeated the Aggies 94-75. (Photo by Wesley Hitt/Getty Images)

Williams hasn’t made the second-year improvements that many expected him to make, which could inevitably hurt his standing on most draft boards. The Sixers could use some frontcourt reassurance behind Embiid, as Amir Johnson hasn’t proven himself to be much of a long-term option at the five.

At 6-10 with a 7-5 wingspan, Williams iss mobile enough to get in a stance and defend out to the perimeter when needed, while his rim protection is among the best in college basketball. In a class highlighted by elite bigs, Williams still has one of the highest individual celings on the defensive end.

Offense is where the question marks pop up. Williams, after showing signs of a jump shot last season, hasn’t made a single three-pointer this season. He’s not a polished scorer on the block either, largely relying on putbacks and at-rim finishes.