If one reads the dailies and malaysiakini, there is certainly political instabilty in the nation and part of the blame can actually be placed on the UMNO Supreme Council itself who want the Prime Minister to step down.
This certainly raises some doubt as to whether the person they want to succeed him has the backing of the majority of the MPs in Parliament for even some BN MPs have questioned the manner in which the draconian ISA has been abused.
So this article in malaysiakini makes sense as to how the political mess can be sorted out. Pakatan's next stop: Istana Negara should be the proper manner to handle any possible tranfer of power in government.
This could be the first time that the Agong may choose the manner in which a national crisis can be averted.