I'm clearly late to the "Eric Chavez is hurt and struggling" party. But the table below is an interesting look at this year compared to last for Chavez. Both lines are the ten-game rolling OPS for Chavez throughout the season. Last year, he started slow, got extremely hot in early June and then played decent ball the rest of the way, save a little untimely hiccup in early September.
This year, he started hot and has essentially gotten worse every day. July has been rock bottom. Chavez has to get healthy and return to something like his normal self if the A's are going to have any real shot at the postseason. None of this is new, but like I said, it's an interesting way to look at the data.