(1) This part is declared to be remedial legislation to be liberally construed for the purpose of increased economy and efficiency in the operation of public schools; and, after any plan of consolidation provided for in this part has become effective, no officer or agency of any constituent school system shall retain any power or duty where such retention would be inconsistent with this part or with the plan of consolidation.
(2) Nothing in this part shall be construed to alter or repeal any other law prescribing methods and procedures, contractual, cooperative, unilateral or otherwise by which schools or school systems may be operated.