Rob Miller, Portfolio Manager at NAOS Asset Management, shares his expertise in long-term growth investments and sheds light on three ASX shares with great potential: Dropsuite Ltd, Hancock & Gore Ltd, and Objective Corp Ltd. The discussion highlights the significance of analyzing management's role, understanding competitive advantages, and the importance of preparation for ASX reporting season. Miller emphasizes the power of patience in small-cap investing and the need for robust customer retention strategies, particularly in tech-driven markets.