PULLMAN — Luke Falk threw for three touchdowns as No. 15 Washington State beat Colorado 28-0 on a rainy and windy Saturday night. Jamal Morrow rushed for 73 yards and a touchdown for Washington State (7-1, 4-1 Pac-12), which rebounded from a 34-point loss at California that coach Mike Leach called the worst game the Cougars have played in his six years there. Phillip Lindsay rushed for 98 yards for Colorado (4-4, 1-4), which was coming off its first Pac-12 win.