in a command with more than 650 sailors the reporting senior on sailors (e-1 through e-6) performance evaluations is what person?

In a command with more than 650 sailors, the reporting senior on sailors performance evaluations is the commanding officer, the executive officer, or the department head.

Explanation:

The hierarchy that the defense services function with is structured intelligently for the convenience of both operation and supervision. At all levels of hierarchy, the direct senior officer is also the supervising officer. The ranks of the officers are determined not only by merit but also by seniority in the force.