The Pakistan Cricket Board has banned Umar Akmal for three years for failing to report corrupt approaches.
Javed Miandad remarks follow player Mohammad Hafeez's protests over former opener Sharjeel Khan's return despite receiving a five-year ban in 2017 over a spot-fixing case.
Wasim Khan, PCB CEO, said Mohammad Hafeez should be "focusing on his own game" instead of criticising fellow players or making comments on the board's policies.
Sharjeel Khan will lecture his former Pakistan teammates on the perils of violating the Anti-Corruption Code as part of his rehabilitation program.
Sharjeel Khan met with Pakistan Cricket Board (PCB) anti-corruption officials who directed him to undergo a rehabilitation programme, putting him on track to return to the sport.
Sharjeel Khan's appeal against a five-year ban over spot-fixing was rejected this week with his lawyer Thursday vowing to challenge the decision in a higher court.
Pakistan's Test batsman Sharjeel Khan has been handed a five-year ban, half of it suspended by the three member anti-corruption tribunal of the Pakistan Cricket Board, based on circumstantial evidence.
PCB's legal advisor Tafazzul Rizvi hinted that the Board was also not satisfied with the decision.
Najam Sethi said in the statement that the PCB fully backed the Anti-Corruption and Vigilance Department as soon as the plot to corrupt the opening game of the Pakistan Super League 2017 season was unearthed.
"Sharjeel is banned for five years, which has two-and-a-half year suspended, after the proceedings of the case," said Asghat Haider, who headed the three-member tribunal.