This is a great thread because I am a new business and had pretty much the same idea. I want to chose the best coffees for each application- regardless of the roaster. If I believe one has the best beans for espresso, then I want to use it even if I prefer another roaster for my specialty drinks. Then there is pour over and press coffee that may be from different roasters too. At the moment, I have two roasters that I intend to use, CoffeeAM and Counter Culture. I've been sampling their coffees and doing some marketing with them by taking airpots full of their coffees to work with me to get comments. I work on a Navy base, so there are lots of coffee drinkers with opinions here! I've been doing this for a week now, bringing 2 airpots with different coffees each day. The comments have all been positive, but there are some clear winners. It has allowed me to figure out which coffee I want to have available every day and which ones I want to put into some kind of rotation that I haven't quite worked out yet. I want to keep it simple, but interesting.
I haven't started doing business yet and have time to think on all of this, but offering different coffees from different roasters makes some sense to me. Does anyone have any advice as to why this approach should not be used?