There is _always_ stuff to do. If he's doing hardcore stuff, then perhaps there's UI work or design work. What's going to happen when he's done? Is there a r

There is _always_ stuff to do. If he's doing hardcore stuff, then perhaps there's UI work or design work. What's going to happen when he's done? Is there a rollout plan? If your gut's telling you to talk to him about it, don't let your lack of confidence get in the way of making it happen. He probably has been hesitant to ask for help on certain matters, afraid it would offend you. The real tragedy would be if you never talk about it.