Tropical Smoothie Café has grown from a single Sunshine State site in 1997 to having more than 600 locations in 43 states nationwide — including 20 in Central Florida. Contributing writer Steve Blue of Miller Ingenuity recently spoke with the Destin-based company CEO, Mike Rotondo, about his journey and what’s ahead: With your success and experience in the franchising industry, what did you see in this franchise that you knew you could add value?