Air traffic control Front Line Manager's (FLMs) influence the prevention of operational incidents (OIs) and runway incursions (RIs) through practices that enable safe controller performance and mitigate problems related to specific contributing factors, including controller coordination, controller-pilot communication, and controller memory. Proximity and frequent interactions with controllers in the operational environment place FLMs in a unique position to impact air traffic safety through managing controller performance and by mitigating OIs and RIs as common contributing factors.