In the course of the evaluation process, determination may be made that a tenured teacher is performing in a manner which is detrimental to the students being taught.  The professional assistance network is designed to help the marginal teacher improve sufficiently to meet a level of professional standards required in order to be an effective teacher.  The opportunity for professional assistance may be offered at the discretion of the building administrator and/or the Director of Schools.  Assistance may be made available when there is a reasonable expectation of satisfactory performance upon completion.  Prior to initiating the professional assistance network, the principal shall inform the Director of Schools.