West Wing creator Aaron Sorkin is taking some sassy potshots at departing cast member Rob Lowe. In the current issue of Newsweek, Sorkin jokes that there's a lot of pressure writing for an actor of Lowe's caliber. "You're looking at the spectre of [past Lowe films] Atomic Train and Oxford Blues and St. Elmo's Fire," he says, "and you try to live up to those standards, and sometimes you can't." Ouch!