When a team usually loses a lot, the fans, media and the players start paying much more importance to individual milestones. A century in India would be cherished by an Australian batsman even if the team loses there because historically it has been tough to win there for Australia.
The problem occurs when individuals give a bit more importance to indiviual milestones than the winning itself.
Slowing down a bit while approaching a century is not uncommon in any level of cricket in any cricket though. It has happened and will continue to happen forever. Cricket is a mental game and one tends to be more cautious while approaching a century. Sidhu ofcourse is the exception to this rule
As a team starts winning more often, it becomes crucial to keep winning rather than achieving the milestones. The bigger picture of giving priority to win a game finally becomes clear.
This has been a change noticed in Indian cricket. It will become much more true for Pakistan now after Woolmer has become coach. Sri Lanka still tend to give a lot of importance to individual milestones. This is because the batting friendly pitches there keep helping them achieve these milestones....