Former Australian fast bowler Jason Gillespie has called interim Pakistan coach Aaqib Javed a “clown” as the ugly fallout from his departure continues.

Gillespie, who played 71 Tests and 97 one-day internationals for Australia from 1996-2006, turned to coaching after his playing career ended.

He was appointed last April for two years as Pakistan’s Test coach but quit before a series in South Africa less than eight months later after an unsuccessful start.

He was the second foreigner to leave Pakistan’s program in less than two months after South African Gary Kirsten stepped down as limited-overs coach in October.

Aaqib, Pakistan’s national selector and interim head coach, acknowledged this week after Pakistan’s failure to reach the knockout stage of the Champions Trophy after losses to New Zealand and India that the chopping and changing didn’t help the national team.

“We have changed nearly 16 coaches and 26 selectors in the last two years or so,” he was quoted as saying at a news conference to announce the latest overhaul of Pakistan’s limited-overs squads.

“You put that formula on any team in the world, I think they will also be in the same situation.

“Until you get consistency right from the top down to the bottom, from the chairman down, then your team will not progress.”

Gillespie responded to those comments by posting an Instagram story late Wednesday, describing the analysis as “hilarious.”

“Aaqib was clearly undermining Gary and I behind the scenes campaigning to be the coach in all formats,” Gillespie posted.

“He is a clown.”

Shortly after Gillespie resigned from his post in December, he revealed a number of eye-opening reasons behind his departure, including the shock axing of Tim Nielsen.

“The straw that broke the camel’s back, I suppose, was, as a head coach, you like to have clear communication with your employer,” he said.

“I was completely and utterly blindsided by a decision to not have a high-performance coach.

“Tim Nielsen was told that his services were no longer required and I had absolutely zero communication from anyone about that, and I just thought after a number of other things that had gone on in the previous few months, that was probably the moment where I thought, ‘Well, I’m not really sure if they actually really want me to do this job or not.’”

Aaqib, a former Pakistan cricket international, had been acting as interim coach of the limited-overs squads following Kirsten’s departure when he took over the Test squad from Gillespie.

Aaqib’s contract initially ran until the Champions Trophy but he is set to continue in the role while the Pakistan Cricket Board searches for a full-time replacement.

- With AAP