[69] The approach of recognizing an overarching organizing principle but accepting the existing law as the primary guide to future development is appropriate in the development of the doctrine of good faith. (ottawaemploymentlaw.com)
But within this process a true development of doctrine is possible, indeed at times it is urgently necessary. (faith.org.uk)
One of the drivers of the development and application of doctrine in administrative law is the concept of the principles of good administration. (administrativelawmatters.com)