A restaurant industry veteran who has led some of America’s best-known chains sees major growth potential in one segment of the dining business.G.J. Hart, CEO of Houston-based SPB Hospitality, told FOX Business that the "upscale casual" category is "there for the taking" as the company looks to expand J. Alexander’s, one of the brands in its portfolio.Hart, who previously served as CEO of Red Robin, California Pizza Kitchen and Texas Roadhouse, said consumers continue to respond to restaurants that deliver both value and a strong experience."It’s a space that, from my perspective, my thesis is...