THE government should not be replacing Pertamina’s senior management too often. Last week, Karen Agustiawan becomes the newest and seventh CEO to be appointed in the past 13 years. Ari H. Soemarno, Karen’s predecessor, was in the job for less than three years, definitely not enough time to streamline the management of a company as large as Pertamina. By comparison, Hassan Marican, the head of Malaysian oil company Petronas, has been at the to