There's an interesting article (.pdf, 194kb) tucked away under the name of Myo-feedback on the Strongerman site. It's a great title if you know what it means, not so great otherwise.
In any case, the topic of discussion is knowing how and when to activate particular muscles in compound lifts. Whether you're trying to fire your lats at the right point in a bench press, or bring your hips forward on cue in the squat - this article has a couple of pointers that may just come in handy.
From the article :
being stronger in a muscle group is only half the picture. You have to be able to turn on that strength, at the right times, in the right sequence and in the right direction in concert with other muscle groups. Sometimes you have to back up and re-educate your motor system if you get into bad habits.
Sound advice.