Each scene should set up the scene that follows, and the following scene should set up the one after that.
A clear cause and effect pattern should run throughout your narrative. That is, your characters should behave in ways that set a story in motion and keep it moving.
If a scene *doesn't* react causally to the previous, then it should spark enough curiosity in the reader to compel them to keep turning pages.
Otherwise, the main storyline should never be more than one scene away.
Be Brilliant!
~Katie~