Three years in the wilderness did Kevin07 a world of good. He's reversed his silly decision to have the Prime Minister appoint the Ministry, not the Labor 'Caucus' of all MPs and Senators.
Meanwhile Tony Abbott (if elected) will retain the business model of the Boss (Tony) hires and fires Liberal Ministers. Fear of which made Peter Costello wimp out on challenging Howard. Had the Libs used democracy (and not The PM Rules) Costello could be PM today, not Kevin 07.
Conservatives loathe change. It could be Abbott's undoing. He is a young fogey with no appeal to younger voters.
Malcolm Turnbull does not live in the past. He has far more appeal than Abbott. Turnbull was a big success in the private sector. He'd be less likely to sabotage the economy than Abbott who makes decisions on his ideological beliefs.