Notwithstanding any other provision of this agreement; the foregoing lay off provision shall not apply to teachers continuously employed under contract for an aggregate of less than ten teaching months of paid service, or to teachers employed for a specific term where, during that term the teacher is employed on the express-written understanding that the teacher will not after the completion of such term be employed by the Board; provided however, no teacher who has been employed by the Board for more than an aggregate of ten teaching months of paid service under contract shall be laid off, where teachers with less than an aggregate of ten teaching months of paid service under contract or specific term contracts have not been laid off, having regard to the necessary training or academic qualifications or experience required for the specific teaching assignment of such teacher employed under a specific term contract or of the teacher continuously employed under this collective agreement with the division for less than an aggregate of ten teaching months of paid service under contract.