Kamran, a veteran of 53 Tests and 157 one-day internationals, blasted Waqar for being an abject failure in his two separate tenures as head coach in 2010-2011 and 2014- 2016.
"Waqar bhai was a failure as coach and he caused lot of damage to Pakistan cricket. In his enthusiasm to experiment and sideline established players he put the national team back by two to three years," Kamran said on Geo Super Channel last night.
"I don't know but he had issues with some players. He had no plans on how to take Pakistan team forward. An example was when he went to the World Cup 2015 and asked Younis Khan to open the innings or his issues on playing Sarfraz Ahmed late in the tournament," Kamran said.
The senior player also blamed Waqar for not allowing quite a few players to settle down in the team.
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Kamran pointed out that in Waqar's tenure Pakistan slipped down the ICC rankings in all formats.
"He took six to seven new players to Bangladesh after the World Cup and the result was we lost the one-day and T20 series for the first time to them," he noted.
Kamran said that the authorities should have learnt from Waqar's first tenure as head coach.
"Waqar insisted on training hard all the time and not having the players also focus on their skills and cricket development was damaging to the team."
Kamran noted that when he was recalled to the Pakistan team earlier this year for the tour to West Indies, Waqar questioned his selection and the need to have two keepers in the side.
"The best part is that Waqar as coach himself kept two keepers in the side," he noted.