Rick Pitino thinks Russ Smith is the key to the season for No. 10 Louisville, and the shifty guard believes he can help the Cardinals make another long run in March. He sure looked ready on Wednesday night. Smith scored 17 points, Peyton Siva had 16 and Louisville pulled away for a 79-58 victory over DePaul that ran its winning streak to four ahead of a big matchup with No. 12 Syracuse this weekend.