Jack in the Box Inc. (JACK) is benefiting from menu innovation, focus on delivery channels and marketing strategies. It is investing aggressively in store improvements and new store build. However, high costs remain a concern.Growth DriversMenu innovation is one of the primary characteristics of JACK. It is the nation’s one of the largest hamburger chains. The company is continuously working on maintaining the uniqueness of its brand, menu and premium food offerings.Jack in the Box continues to focus on dri ...