It just so happens that one of the people, the SheppyBrew Beer Model, does not always like the beers that the Brew Master likes to drink. The Brew Master, of course, has his favorite styles, but will drink and enjoy just about any beer style.
The SheppyBrew Beer Model has a much narrower focus. Anything too bitter and anything with too much roasted or coffee flavor is out. She also has random aversions to certain beers which she cannot articulate.
And so, the brewing schedule has to factor in taking the time to make beers that the woman of the house wants on tap.