''He may be an organised and intelligent cricketer but I can't say the same thing about his captaincy,'' Inzamam said in a talk show with Ramiz Raja on 'Geo Super' channel.
Inzamam said many senior players have came up to him complaining about Malik's unfair behaviour towards them.
''He has not been fair with senior players and has let them down on several occasions. He has not been open and honest with them and they have conveyed their unhappiness to me,'' he added.
Inzamam, who is currently playing in the second season of the ICL, also expressed his regret for strongly supporting Malik's selection in the team when he himself was the captain of the Pakistan team.
''It is very unfortunate the way Malik has handled his responsibilities as a captain and relations with senior players who need to be treated with respect,'' he noted.
It has also been learnt that veteran batsman Mohammad Yousuf's departure to ICL was a result of the way he was treated by the team management and board since Malik took over as the captain of the team.
Malik's captaincy is already under the scanner and will be reviewed by the PCB later this month as his current term ends on December 31.
Meanwhile, former Pakistan leg-spinner Mushtaq Ahmed, who was also present on the show, opined that captaincy was more about man-management and the skippers, he had played under were always supportive of their players.
''Any captain to be successful must be very good at man management that is what I have seen from the best captains I have played under. A captain needs to support the players in trying circumstances,'' he said.