The take-away from the workshop was: when writing, you must know your destination. In a novel you should know the ending of your large story arc and you should know the destination for each of your chapters. But it's totally fine to figure out your chapter destinations as you go along.
IMHO, as a short story writer you should know your final story destination when you start writing. Personally, I've written myself into a lot of corners and tangents when I didn't know my destination. Don't do that! :)
So, I ask you: What is your destination?