For headshots, an out-of-focus foreground (i.e the subject) is a bad idea, but blurry backgrounds look cool! So I was excited when a DC area client wanted just that.
Fortunately the space they chose for the shoot, a co-work space called DC Workspaces, was perfect for the job. They had a glass-walled conference room with a large, bright open space behind that acted as the perfect stage. And by moving just a few inches to one side or the other between shoots, I was able to give each subject a slightly different backdrop.