I would suggest that you also think about what strengths each of you has in the Craft as well. One of the biggest benefits of working in a coven is that EACH member of the group will have their own abilities (herbology, healer, divination, musician such as a tribal drummer for beats for dances, which increase magickal power, ect.) And this DOES NOT mean that that should be the ONLY person in the group with one of those skills, SHARE your knowledge and wisdom with each other, just those would be the people in your group with interest (and hopefully talent) for each of these positions.
Also, in regards to magick, let each of you discuss any spells any of you are considering (sometimes outside input can shed a light you had not thought of yet). And also, meditate together often. This will bring you all more in line with each other on a spiritual level and thus make it much easier to channel your energies together in the efforts of magick, as you will see. And it will also bring you all closer to each other as well. Let me tell you, regular meditation with other people REALLY brings you all up to a mental and empathic link, which will lead you all to feel as if the other members in your group are truly you kin, which in truth they ARE. We all come from the same source and return to it as well. And this goes for all life, not just those of same race. In truth, the plants, animals, wind, lakes, EVERYTHING all comes from the same source and so is our kin.
Beyond that, my best wishes to you all. May the Goddess light your path and Blessed Be!
The Goddess is like the moon itself, guiding us in our darkest moments.