For 58 seasons, through wars, impeachments and the corporate dismantling of the network news business around it, “60 Minutes” remained America’s highest-rated newsmagazine. “60 Minutes” was imperfect, sometimes badly so. “60 Minutes” was imperfect, sometimes badly so. The names attached to it read like a “60 Minutes” reunion special. The result is a “60 Minutes” with a drastically depleted bench heading into a new season.