LOS ANGELES - Taylor Rochestie looks like somebody's kid brother sneaking onto the basketball team.
He's just as bothersome, too. For opponents, anyway, and when he waltzed through USC's defenders for an uncontested layup, the skinny left-hander not only broke down the defense, but its spirit as well.
The layup gave No. 4 Washington State a 14-point lead en route to a 73-58 victory over USC at the Galen Center on Thursday.
The Trojans pride themselves on their defense and, for the most part, acquitted themselves nicely against the Cougars. But they were shown an entirely different level of overall play.
The patient Cougars lured the Trojans into one frustrating moment after another. The game's final indignity was delivered by, of course, Rochestie, who passed off the backboard for a dunk by Aron Baynes in the final seconds.
Forward Daven Harmeling scored 14 of his game-high 19 points in the first half to lead the Cougars (14-0, 2-0 Pac-10), who are off to their best start since the 1935-36 season.
Baynes, who tormented the Trojans last season, had 18 points and nine rebounds. Rochestie had 12 points, seven assists and made both of his 3-point tries for the Cougars, who went 10-for-19 from long range.
O.J. Mayo scored 22 points for USC (9-6, 0-3), which shot 54.2 percent against the nation's top scoring defense.
Dwight Lewis and Taj Gibson each scored 16 for USC.
It's no mystery the Trojans have some improving to do with a young team, but the intrigue surrounding it continued.
Freshman forward Davon Jefferson started last Thursday against California but played only 15 minutes against Stanford on Saturday, a decision Floyd said he made based on match-ups.
Jefferson not only was not in the starting lineup against WSU, he didn't play at all.
USC knew what it was in for with the nation's top defensive team, and the Trojans looked past a few clanks and stumbles before the first half ended.
When the Cougars steadily built an 18-12 lead - which qualifies as near dominance the way they play - the Trojans suddenly found their footing.
Mayo hit a short bank shot, then Hackett drove and hit a short right-hander. After a timeout, Mayo connected on a 3-pointer from the wing over Kyle Weaver, then Mayo passed to Gibson in transition for a dunk that completed a 9-0 run and gave USC a 21-18 lead.