I don't understand why things are contagious in sports. It really doesn't make any sense. My son played travel baseball from the age 10-16, I've seen a few hundred youth baseball games and I can tell you that hitting is contagious at that age level. If a couple guys get a hit, everyone hits. It also works the opposite, if the top of the lineup is hitless, you have a great chance the middle and bottom of the order will not be hitting as well.
Michigan rolled into Memorial Stadium and for most of the first half it looked like a good High School team playing a Junior High.