Every story is a series of events that hopefully
lead from one to another. Something happens and because of that other actions
need to be taken.
But even when thing logically follow on from one to
the next, that doesn’t necessarily make for an interesting story. Just because
there’s a good reason for what a character’s doing, that isn’t necessarily enough
to make it worth reading about.
You can very easily get into a groove that turns
into a rut. What the character needs to do next seems so obvious the writer
doesn’t take a moment to consider whether that’s a good thing.