Despite the hole the Cubs have already dug (and continue to dig) for themselves this season, I still believe they have the best shot at winning the NL Central.
However, an NL Central victory far from assured, which is why I think the Cubs should still very much add this deadline. When you are the best bet, but not a lock, to win a division, every incremental win added carries a whole lot more weight. I’ll be surprised to see them stand pat this July, even if they won’t force a major trade before the deadline.