Subject to this section, the following individuals may practice land surveying without a license: an employee or other subordinate of a professional land surveyor; and an employee of an individual who is not licensed but is otherwise authorized under this title to practice land surveying without supervision. Subject to this section, the following individuals may practice property line surveying without a license: an employee or other subordinate of a licensed property line surveyor; and an employee of an individual who is not licensed but is otherwise authorized under this title to practice property line surveying without supervision. The authority to practice land surveying or property line surveying under this section applies only if the licensee or other authorized individual has, with respect to the investigation, design, construction, and operation of the surveying work of the employee or other subordinate, direct control and personal direction that requires initiative, professional skill, and independent judgment.