On Wednesday, Ewing Jr. tweeted, "For real though I'm mad J Kidd got a head coaching job a year after retiring n my pops has been coaching 10 years n barely gets a look.
He added later: "Im not mad at J Kidd or hating that he got the job. I'm happy for him. I like him. I just dont get y other qualified coaches get overlooked."
Ewing, who built his Hall of Fame legacy as the Knicks' All-Star center, retired after the 2001-02 season and became an assistant coach for the Wizards. He then served as an assistant for the Rockets (2003-06) and Magic (2007-12).
Ewing took a season off from coaching, but sources confirmed Tuesday that he will become the associate head coach of the Bobcats.
A day later, Kidd got the Nets job.
"I love the Knicks," Ewing Jr. tweeted, "but the best offer they had was NBDL HC?" That referred to the Knicks' offer to Ewing last fall to coach their D-League team, the Erie BayHawks.
During a Thursday appearance on ESPN New York 98.7 FM, the elder Ewing was asked why he hasn't landed a head-coaching job in the NBA.
Listen to the interview with Patrick Ewing:
"I don't know. Maybe they think big men can't think," he said. "The point guard runs the show, but as a center, I'm the leader of the defense, I'm the one that's barking out the defensive schemes, the defensive plays. Just as much as a point guard can think, big men can think also."
He added: "All I can do is just keep on working, keep on getting better, keep on improving, and hope that one day I would have that opportunity to have somebody believe in me to give me a chance."