Ford's (F 0.42%) turnaround has been one for the history books. In just a few short years, the Detroit icon has gone from the brink of collapse to one of the world's most admired automakers -- without the bailout that was needed to save rival General Motors (GM 0.50%). But has Ford's turnaround run its course? In this video, Motley Fool contributor John Rosevear explains that there's still more to do -- and that Ford is already making one big change that should add billions to its bottom line in just a few years.