Whenever a person employed in an administrative or supervisory position requiring certification qualifications is transferred to a teaching position, the governing board of the school district shall give such employee, when requested by him, a written statement of the reasons for such transfer. If the reasons include incompetency, an evaluation of the person pursuant to Article 11 (commencing with Section 44660) of Chapter 3 of this part shall have been completed not more than 60 days prior to the giving of the notice of the transfer.