In Australia, the Rudd Labor Government is now either dead even or leading, depending on which poll has most credence. Rudd and his cabinet (the cabinet are also the executive committee of the party caucus) just proposed a new plan for electing the parliamentary leader.
Leaders would be elected jointly by caucus and individual party members on a 50/50 basis, leaders could only be removed by a 75% vote of caucus, caucus would regain the right to elect the cabinet and the ministry. These are reasonably radical proposals for the ALP, although it looks like they will pass.
Partly the motivation is electoral, the electorate needs a guarantee that there will be no repeats of the Gillard disaster, or the equally disastrous leadership coups in the NSW branch, but I think the changes show a genuine concern for reform is well. Rudd was the first Labor leader empowered to pick the cabinet, so it’s interesting that he’s abandoning that in favour of a return to caucus election of the cabinet.
I guess it raises more broadly the question of how democratic parties should select leaders and candidates.