OT Defense WorkForce Roles and Training

NEW DoD Cyber Work Role “Control Systems Security Specialist.“ Responsible for device, equipment, and system-level cybersecurity configuration and day-to-day security operations of control systems, including security monitoring and maintenance along with stakeholder coordination to ensure the system and its interconnections are secure in support of mission operations. How many are needed in operational testing?  How many needed to defend against OT cyber-attacks?  Is training sufficient?