Former prime minister Najib Abdul Razak told party leaders and members in Pekan on Sunday night that Umno will suffer a slow death if it remains complacent with its role in the Perikatan Nasional government.<br /><br />Speaking at the Pekan Umno AGM, the former Umno president said the party will not be able to sustain itself by merely being a component party in Perikatan Nasional.