It wasn't long after the trading deadline that the front office's not making a big trade for a starter became apparent. Multiple players hit above their career averages in the first have of the season. Historically, when established players have better or worse first halves than their career averages, their second half performance brings their results for the year in line with those averages. This phenomenon is a mathematical concept called Regression to the Mean. Cubs' hitting had already started its slide before the trading deadline and management surely noticed it. Why make a big trade, which would give away the best prospects, when hitting wasn't going to hold up? I, for one, am pleased that Caissie was in the lineup yesterday rather than playing for another team.