The competitive landscape of Whole Foods Market includes major rivals such as Sprouts Farmers Markets, Trader Joe's, Kroger, and Earth Fare. These competitors offer organic and natural food products at varying price points, with some focusing on quality and others on affordability. To adapt to this environment, key success factors include controlling inventory, having a loyal customer base, a user-friendly website, economies of scale and scope, rapid technology adoption, and ability to deliver products in various locations. The competition criteria for supermarkets include pricing, brand strength, and location, with operators competing to offer the best value proposition.