Sussan Ley has a choice to make. If there is anything left of the LNP coalition worth saving from political oblivion, she can either accommodate and weaken her position within the current broad church. Or, she can attempt to rejuvenate the Liberal Party by ditching the Nats and purging the remnants of the #trumpists from its membership whether she has the poilitcal capital to do this or not..
In any case, Ley's problem is to live on as a weak leader precariously holding toghether a bunch of squabling kids affected by a delusional sense of what Australia needs, or be remebered for a leader willing to bet the house on reforming the Liberal Party to its original progressive ideals.
In either case, her days as a party leader are numbered, and it's a small number at that.