Pilight (disguised as fanblogger Kevin) asks: why do some eminent shooting guards and small forwards often get suddenly worse in their early 30s, when point guards and posts can still keep their numbers up?

Pilight suggests that year-round play is to blame, and hurts wings more than PGs or posts. Could be... but what about these exceptions? And what if wings, more than PGs or posts, have their roles (and relative merits) changed by the rising level of the college game?