While much of the industry is struggling with losses and declining sales, Toyota is a juggernaut. But Jim Lentz, the new executive vice president of Toyota Motor Sales U.S.A. Inc., still has plenty to worry about.

Toyota's rapid growth is straining dealers' ability to provide customer service. Despite sizzling hybrid sales, Toyota has its share of gas guzzlers thirsty for $3-per-gallon fuel. And the company is betting that the upcoming Tundra full-sized pickup can more than double its volume by stealing sales from Big 3 loyalists.

To tackle these challenges, Lentz will use his experience launching Scion and working with dealers during a long climb up Toyota's corporate ladder.

That may play havoc with Toyota's consensus-driven culture, which Lentz readily admits sacrifices speed for stability.

Story: Autoweek