Morneau even admitted to this during a broadcast early in the season. He said he wished this kind of rest-focused program was in place during his playing years because he wore himself down and underperformed the second half of most seasons. And, looking at the data, Justin isn't just feeding us a line. His career second half OPS is .075 lower than his first half OPS. And yikes, it gets worse the more you drill down. Here are his OPS numbers by month: .849, .912, .800, .881, .777, .752. Morneau was an average player when the Twins needed him most.