Metamorphic petrology in the modern sense started at 1950s with Eskora's concept and open system thermodynamics of Thompson and Korzhinskii. The time scale of 50 years after foundation of the discipline seems to be slightly long compared with disciplines of biological sciences. The aim of the discipline, then may be sharpened to be evaluated the possibility of future development of this field. This should be performed from the viewpoints of science management and science marketing and contributions. Here I will try to evaluate these in the metamorphic petrology with structural geology disciplines.