One knock on Williams early in his career has been availability. He has played in 84 out of a possible 212 games through his first two and a half seasons with the Hornets (39.6%).
I am happy someone did the math.
That was from an ESPN article.
A youtube video by Athletic writer Jovan Boha had two interesting defensive stats:
(1) Charlotte is / was -6.6 points per 100 possessions worse with Mark Williams on the floor defensively. That is the worst mark of any rotation regular on the Charlotte team.
(2) Mark Williams allows 68.2% dFG% at the rim. AD was in the high 50s. Jaxson Hayes was 58%.
Edit: Jokic was getting criticized recently for his dFG% of 69.5% at the rim which was the 2nd worst in the league among players who defend 5 or more shots at the rim per game (Towns was #1). So Mark Williams's dFG% is among the worst figures in the league.
Edit: Actually, those Jokic nmbers were from 5-6 weeks ago. They have improved a lot since then. Down to 63.2%. Towns 66.3%. Mark Williams 67.6%. This accoding to NBA.com on shots within 6 feet of the basket. Mark Williams appears to the be the highest (worst) in the league among centers. Y Missi is at 65.8%. Vucevic 64%. Towns still 2nd worst. Sarr 63.1%.
Boha also mentioned comments previously made in this thread about Mark Williams defense. High stance, doesn't bend his knees well, beat off the dribble easily. Gets pushed around in the post defensively. AD scored 21pts in Q1 against Charlotte with most of them against Mark Williams. AD hit jumpers, beat Mark off the dribble, and powered through Williams in the paint.
Also mentioned Mark Williams has a history of ankle, feet and back injuries.