Funny you should ask. I spoke to Mike Tuchscherer about this last night. I wanted to tell him I support his position on speed training as a major distraction from strength training, and how we explain this in our seminar. Mike makes the point that the only way to ensure that an absolute maximum force production rep occurs is to load the bar to a 1RM.
The relationship between force production and acceleration is discussed in BBT, and is the basis of the dynamic effort method. Acceleration is volitional for a squat, bench, press, or deadlift, while it is inherent in a completed clean or snatch. IOW, how do you "miss" a DE deadlift? If a power clean is missed, there was insufficient acceleration/force, whereas "sufficient" acceleration in a lift that does not depend on an unpowered momentum phase for its completion is completely volitional, i.e. the acceleration displayed need not meet any objective standard for completion of the rep. In contrast, if you fail to generate enough force to complete a 1RM, an objectively assessed lack of sufficient force has been produced.
Mike makes the further point that heavy reps are the only way to train the isometric aspects of the basic exercises, the "technique" aspects of holding the correct position in the full movement as the weight moves through its ROM. This is one reason the deadlift contributes to the clean and snatch.
He makes the observation that many people have reported success with DE work. I would refer them to this:
http://startingstrength.com/index.ph..._novice_effect
which simplifies many otherwise complicated things.
In general, the further away you get from heavy sets of 5, at any level of training advancement, the more removed you are from the basic stimulus for long-term strength acquisition. The history is pretty clear.