The only people who should be able to make these decisions are the VOTERS.
The voters elected a party and the party elects its leader.
The fact is that Tony Abbott as leader tried to implement the things he promised he wouldn't do; and he didn't implement the things he promised he would.
His style was that of a very effective opposition leader, but he never made the transition to Prime Minister, as a leader of the nation.
Abbott didn't make the grade in the opinion of a great many Australians, and the Liberal party (to their credit) has replaced him with a man than a great many more Australians feel respect or affection for.
As some commentators have noted, it was Abbott, Rudd and Gillard that made Australian politics the brutal blood-bath of the post-Howard years.
I don't believe this is a wonderful clean new beginning but I have more hope for the standard of national debate today than I had at this time on Friday last week.