A day after he was told he would not return as head coach of the Nets, P.J. Carlesimo delivered a realistic appraisal of the situation.

In a series of radio interviews yesterday, Carlesimo said essentially the same thing a few different ways: that he was happy with the job he did, disappointed he didn’t get a full season on the job and understanding of the decision Nets general manager Billy King and ownership made.

“It’s the way it is,” Carlesimo said on WFAN. “I’m disappointed. I’m not a little disappointed, I’m tremendously disappointed, just because I feel strongly about what a great situation this was and how different it can be, given a training camp, given a staff, given the opportunities the next guy is going to get, that’s all.”

After taking over for Avery Johnson with the Nets sporting a 14-14 record in late December, Carlesimo piloted the team to a 35-19 mark over the final four months, good for sixth-best in the NBA over that span. But King chose to make a change the day after the Nets’ season ended with a Game 7 loss to the Bulls on Saturday night in Brooklyn.

“We met Sunday at noon, and Billy was very candid and they wanted to move in a different direction,” Carlesimo said. “They want somebody that philosophically was more in line with how he viewed the roster and the way they wanted it run.“[It’s] disappointing, because I thought we did a good job, but when you own a team and you’re the GM, you’ve got to get the guy you believe is the right guy.”