Teams in Blackjack often encounter several challenges that can hinder their effectiveness. One significant issue is coordination, as team members must work together to execute strategies, but differing opinions and styles can lead to conflicts on decision-making. Additionally, maintaining clear communication is critical, as miscommunications can result in mistakes such as failing to signal or misinterpreting hand signals, which can compromise the team's strategy. Building trust within the team is another hurdle, as players need to rely on each other’s abilities and decisions under high-pressure situations. Lastly, emotional dynamics play a role, as stress from losses or the pressure to win can lead to tensions that affect team cohesion and overall performance. This combination of factors can complicate the team's efforts to execute a successful game plan.