The right time is always. Research profits from the dialogue of experience and knowledge of the old generations and the enthusiasm and unconventionalityv of the young generations. 

Erick thanks for your reply . Two specific questions . What characteristics should the researcher to build these relays as a person and what are the conditions that provide the institutions to do so are ? I'm interested in your experience to compare contexts of development between Central America and other parts of the world

I can only speak from my humble experience, and it's difficult to tell "hard" criteria. The reseachers should be open-minded to each other. The experienced researcher should offer advice when needed and loyality to support the dialogue with the "establishment". So he can provide a creative space for the next generation. 

From my personal point of you, institutions should support structures, i which such spaces can be generated. In many cases, they just don't do this because expectations are short-term and application-oriented.

Thank you very much for your answer. I have the impression that the institutions lose with not perform these exercises in terms of projection of knowledge and building long-term projects . I imagine the behavior is similar in both hard sciences and humanities.