The goal here is to never run out of stamina while sneaking, be able to steal/pickpocket even in the most crowded situations, sneak away or stealth kill people easily and be able to solo with a few self heals. This is basically for Dark Brotherhood content or Thieve's Guild content.
You'll want to swap between Shadow Strike, Friends in Low Places, Fade Away, Cutpurse's Art and Infamous in the Craft (green) CP tree depending on what you're doing.