The Next Phase of Social Impact

In the social impact space (if there is a "space" so encompassing), it seems like the last ~20 years have been characterized by experimentation with different models and tools to create impact. It's been a renaissance of exploration. Organizations and individuals have applied entrepreneurship to solve problems (social entrepreneurship), taken approaches and vehicles of investment to create impact (impact investing), and recognized the need for a defined skillset in "collective impact" to tackle systems-level change.

I'm curious if the next phase will be about the thoughtful combination of these tools and models. My hypothesis is that the true change-makers in the next 20 years will be organizations and entities that combine relevant tools and models to achieve more impact than pursuing just one model in isolation.