Kevin Youkilis, 1B
Fast fact: Hit .342 with runners on base, .242 with the bases empty.
Lowdown: It's happened every year, but never more significantly than in 2007: After first-half stats of .328 average, .921 OPS, and 40 strikeouts in 293 at-bats, Youkilis sank to .238, .747, and 65 in 235 at-bats in the second half. With the addition of Sean Casey, the team might get Youkilis some of the rest he clearly needs as the season goes on.
(Globe Staff Photo / Jim Davis)