Periodically, I've had the pleasure of being an actor for this class. My favorite professor for this class, thus far, is Shira-Lee Shalit. After each scene is presented, Shira-Lee asks some questions about what the rehearsal process was like, what we're focusing on and such. After which she finishes up by asking the actors, "What's not working for you?". Increasingly, I think this question is crucial to the most fruitful actor/director relationships.
The hierarchy of theater say that directors are the puppet masters and actors are the puppets. Like all great relationships, things work best when each side values and respects what the other brings to the table. But at the end of the day someone needs to make the final decisions and someone needs to go out on stage and execute them. Within this dynamic, I think actors often don't feel able to bring up what's not working for them (or if they feel compelled to, that they may not do it in the most constructive way). If we accept the notion that each actor should be the expert on their character, this is a huge lost.
Additionally, if there's something that feels awkward to you, as the actor, but you're not getting a note on it from the director, bringing it up feels a little like you're being needy or being the actor who always has a problem with something. (You know, like the actors who use the phrase "What's my motivation for that cross? I'm just not feeling it.") The objective is not that it feel right to you as the actor. The objective is that it convey the story to the audience as the director envisions it. In the best of circumstances, it would feel right for the actor AND convey the story. But if it can only be one, my preference would be story over actor every time, even when I'm on the acting side of the equation. However, just because the note is not being given doesn't mean that that issue isn't an issue. It may be that the director knows there's something wonky going on but isn't addressing it because they're not exactly sure where the root of the problem is. Or it may be that the thing that feels awkward to you on page 23 is what's causing the problem that you're experiencing on page 27 (that you ARE getting a note on). Conversely, no one wants to be the director who micromanaged all sparks of life into the ground.
I like to think of directors as smart people. I like to think that the really good ones do a great job of collecting the right group of people for any given project. And that they do a great job of editing all the elements of the story together. I also like to think of actors as smart people. I like to think of them as experts with regard to their piece of the pie. Each actor perfects his own part and the director takes all those parts and assembles them into a whole. If, as a director we can be brave enough and generous enough to ask "what's not working?" we stand a chance of having a very intimate conversation about the work we're doing from a perspective that might never have occurred to us. We stand a chance of making it a truly collaborative process. And, perhaps most importantly, we stand a chance of having a really integrated piece of work.