To reach a certain training goal, e.g "get more 'speed strength' ", "get more muscle mass": Should a white-muscle-fiber guy do the same workout, or a different workout than a red-muscle-fiber guy to reach this objective?.
I am assuming equal weight, equal age, fitness level, general health in both persons.
From Wikipedia: Fast versus slow twitch muscle fibers
Skeletal muscle is composed of long cylindrical cells called muscle fibers. There are two types of muscle fibers, slow twitch or muscle contraction (type I) and fast twitch (type II). Slow twitch fibers are more efficient in using oxygen to generate energy whilst fast twitch fibers are less efficient. However, fast twitch fibers fire more rapidly and generate more force.These are also called the white muscle fibers and red muscles fibers respectively.
(in fact, I had already much more text in this question, and was about to post. But then I realized that I am more interested in a general answer, rather than an answer to "I am suchandsuch, want to improve my thisandthat")
Edited: Title of the post: Changed key words, body: added wikipedia link + quote.