Based on Steve Jobs' childish and unprofessional remarks about Disney earlier this week, I don't think he'd be any better a CEO for the company than Michael Eisner.
And Disney pretty much has to remain a multimedia conglomerate -- it's the only way to survive against the competition. But there are definitely non-core parts of the company that are weighing it down and should be sold off -- ABC Family, the partially-owned cable networks (Lifetime, Lifetime Movie Network, A&E, Biography, History, History International, E!, and style Network) Miramax, US Weekly, and most of the music division for starters.