The objectives of this research were to: 1) create and specify the achievement goal of developing the innovation for enhancing the learning achievement of schools, 2) develop the potentiality of teachers and educational staffs in enhancing learning achievement of schools with the application of the ESC in coaching and mentoring, 3) monitor and enhance learning achievement of schools, The development and participatory action research were employed through the application of ESC. Research tools consisted of the learning activity package, teaching observation forms, narrative recording form, lesson plan analysis recording form, teaching reflection recording form, and criteria of activity implementation. Statistics used were percentage, mean, standard deviation, effectiveness index and the statistics in hypothesis testing. The results revealed that: 1) The school performed learning transformation project to enhance students' learning achievement in terms of memorandum of cooperation with the networking schools. 2) The results of the overall development of the potential of teachers and school administrators showed: (1) the efficiency of both activities and tests were 90.96/81.02 which were higher than the committed standard 80/80, (2) the effectiveness index after training was higher than before at 0.7480 showing an increase of knowledge of 74.80%, (3) the mean score of after training was significantly higher than before at the level of 0.01, and (4) there were no statistically significant differences in mean scores on learning retention. 3) The monitoring performance of co-researchers showed the increase in knowledge, practicing, and feeling. 4) The Professional Learning Community building started up with (1) collaboration of all stakeholders, (2) studying and analyzing information, (3) specifying target and indicator, (4) planning and building up a network, (5) presenting learning co-design, (6) trying out innovation after the ESC actions, and (7) sharing the ESC in the school and school network.