Sustainable growth can be elusive. Research has shown that only about 15% of the companies in the top growth quartile in 1985 were able to sustain their top-quartile performance for at least 30 years. While factors such as operating systems, financial health, and internal processes are all critical in determining whether growth can continue, studies show that of all the resources a company has, human capital is the most important. In other words, consistent and profitable growth is never easy, but it’s nearly impossible without “the quality, talent, and mindset of its people.”