The concept of the Bake Off is simple: one play, three directors, three casts. The result: three different performances that demonstrate the role of the director in crafting drama. This year, the Vermont Stage production focuses on Caryl Churchhill’s A Number. Published in 2002, the show explores familial tensions in a not-so-distant future when cloning humans has become a reality. Per their usual fashion, Vermont Stage divvies the script into three segments, which are handed off to directors Jordan Gullikson, Patrick Clow and Aly Perry. Theater geeks, gear up and head over to the FlynnSpace to see how it reproduces a sci-fi fiasco.