If you plan to talk to him about it (you should) then make sure you identify some specific examples of where you feel he is under performing - otherwise he coul

If you plan to talk to him about it (you should) then make sure you identify some specific examples of where you feel he is under performing - otherwise he could think your just finding excuses/passing blame for the sales not going well. Brainstorm (together if you like) ways to improve those areas. This question is asked here with some regularity - it's one of the most common issues in startups. The consensus is almost invariably: - talk to him - if it's still not working out part ways - offer to buy him/her out if you can afford it - don't leave anything hanging (unresolved ownership issues etc) (good luck!)