While I don’t love all that Khan and the Clayton Christensen Institute do, I think that this series of videos (mostly taken from a MOOC last year) are a good starting point for folks who are looking at blending.
Teaching in a blended learning environment – rethinking the role of the teacher | Silicon Schools Fund and Clayton Christensen Institute | Khan Academy
Teaching in a blended learning environment – rethinking the role of the teacher Discover how the role of the teacher is changing in blended-learning environments. What parts of the job stay the same and what is different? How does an organization support teachers in making the transition to blended learning?