Comparing Fernando Cruz to a couple other aging stars Ted and I discussed:
Mark Simpson: has a 5 Contact (vs. Cruz’s 7), but his AVK is not high … so that’s interesting. If you track his BABIP over the years, you get this:

- Simpson-2045-BABIP.PNG (10.48 KiB) Viewed 1193 times
Bottom line, his BABIP was probably pretty solid until he hit age 32, whereupon it started to flag. He got 170 AB in Boise, and 169 more in Omaha (which is BABIP neutral). Bottom line, until this season’s big drop, Simpson’s curve can be said to look a lot like Cruz’s. Will Cruz come back with another 150 AB? That's the million dollar question.
Emilio Morales: Morales is obviously a high power, high AVK kind of hitter, which is quite similar to Cruz. He also plays in that BABIP-neutral park. I note that Morale’s Contact (estimated batting average) is “6” vs. Cruz’s “7.” Still, here is his BABIP across his career.

- Morales-2045-BABIP.PNG (8.41 KiB) Viewed 1193 times
We can see here why, at age 32, Morales’ value dropped. That’s were his BABIP dropped to about .200. Unlike the others, he’s stayed pretty consistent there (note, we’ll see what happens with Cruz and Simpson if they stay in the league). I’ll note, too, that his GAP rating also seemed to decline at the same time—his 2B/AB and 2B/1B rates also feel around there. I suppose that’s related to speed falling off, too.
The fun of looking at Morales rather than Cruz and Simpson is that the ballpark didn’t really change for Morales.
What does it mean? I don’t know. I guess it’s interesting to get a sense of how BABIP can age. I should note, though, there are players who maintain BABIP out into older years, too. OOTP development is not “locked” in any particular way so much as it’s just unlikely to let 40-year-old hitters play with a .300 BABIP. [grin]