I think that he should have spent more time in the nets than plan uncalled-for retirements. It was apparantly for the better that he was replaced with the experience and flambouyancy of Ijaz Ahmed. Aquib was another player with an attitude. He was fined three or four times in England and even suspended for a match or two for bad-mouthing the umpires and still did learn how to respect authority. Even though he was a very good bowler, he lacked the responsibility and manners of a cricketer.
Cricket is, afterall, a game for gentlemen.
There is and never will be any place for tantrums and otherwise ugly behaviour. Dropping Aquib to inject younger blood into the Pakistani bowling department has brought in record-breaking performances from teenaged pacers such as Mohammad Zahid and Shahid Nazir. Asif Mujtaba just did not have the talent or the ability. His test debut was way back in 1987 against the Windies and since then he has not managed to register a three figure mark in the top class of cricket. His best performance with the bat is a comparitively insignificant, unbeaten 65.