Over-ambition can lead to several risks, including: 1. Burnout: Pushing too hard without adequate rest and recovery can lead to burnout, both for the leader and their team. 2. Poor Decision-Making: Over-ambitious leaders may overlook important details or take unnecessary risks. 3. Team Disengagement: Unrealistic expectations can demotivate and disengage team members. 4. Reputation Damage: Failure to achieve overly ambitious goals can harm the leader's and organization's reputation.