Changing your coffee brand should be done in conjunction with other minor changes and should be seen as a good thing. A great thing. It simply depends on how you put the change into action and following that it's about how you, the cafe owner, sell it to your customers.
I was once told to make sure I never go into business with family or friends. There isn’t anyone in the world I would rather work with than my wife Jackie. In fact, Black Velvet is what it is today largely because of her work and because we made sure that we determined our specific roles.