E-mail is not a conversation. If you are not communicating, pick up the phone or meet face to face. Pick one or two things that are really bothering you and tel

E-mail is not a conversation. If you are not communicating, pick up the phone or meet face to face. Pick one or two things that are really bothering you and tell him. Ask him what you are doing that bothers him. At this point it's just poor communication. Other folks have pointed out it's a question of his complementary skills, which I agree with. The real question is one you two are communicating more effectively is he able to do things that add significant value to your startup.