For a one game playoff "series", you could basically whittle your rotation down to 1 guy and carry at least 3 extras, could you not? So if you're starting Chacin you could leave off Gio, Miley, and Anderson, and carry extras in the pen and bench. Wild card roster shouldn't be a ton different than what we got now minus guys like Nottingham and Saladino who serve no real purpose anyway.