ATLANTA — Paul Johnson says Georgia Tech's powerful running game, which was dominant in last week's lopsided win over Boston College, will face a different challenge on Saturday against Brigham Young's stout run defense. The Yellow Jackets ended a three-game losing streak by running 91 plays — the team's high mark in five years under Johnson — and running for almost 400 yards in the 37-17 win over Boston College. Georgia Tech (3-4) boasts the nation's No.