An interesting aspect of these trades is that few of the comments here -- as is true with much of the media coverage -- address the quality of the replacement players that involved teams have for players traded away. So just taking the Heyward-Miller trade as an example, the Cards have quality arms like Gonzalez/Martinez/Wacha to replace Miller in the rotation which softens his departure significantly (arguably improves upon him). Whereas the Braves are replacing Heyward with a combination of Betancourt's offense and Gattis' outfield defense, which likely represents a 4-5 win loss in the standings for 2015 for a team otherwise good enough to compete for a playoff spot.
Finally...back to baseball.
This is a legitimate point, although I always try to factor team aspects into mine. However, it is ironic--considering your errant dismissal of Jenkins-- you are so ready to consider Martinez and Gonzalez as solid replacements for Miller when they haven't proven that yet. Martinez obviously has an excellent arm and, admittedly, an even higher upside than Miller. However, he only started 7 games last year; and he had a 4.03 ERA and a 1.41 whip. Considering your dismisal of Miller who had a 2.94 ERA in the second half, your seeing Martinez as a quality SP replacement next year is dubious. The same goes for Gonzalez--who has a
lower ceiling than Miller--who had a 4.15 ERA and doesn't throw hard. The Cardinals
cannot count on these two to replace Miller.
As to the Braves, they are replacing Heyward's unimpressive .169 avg vs lefties, 11 hrs in 573 ABs, and dismal .389 slg pct. with Gattis' 22 hrs in 369 abs and a whopping .493 slg. pct. Since they weren't going to be able to trade B.J., he was going to play CF no matter what. So, while their outfield defense does slide a little, the huge offensive jump there will at least make up for it. As to Bethancourt, he is a superior defensive catcher to Gattis, which will be huge for Atlanta. I have no idea how you figured out that 4-5 game loss and don't agree with it. With the Phillies and the Mets in the division, and the Marlins still gelling, the Braves have a very strong chance for the Wild Card, especially with Miller.
Laroche seems a curious player for the Chisox to acquire since they are really in rebuild mode, have Abreu already, and Laroche is 35 years old.
I'ts a good signing. For 2 yrs/25 mil they get a left-handed DH who can fill in at 1b and who hit 26 homers, with 92 RBis, a .362 Obp, and a .456 sg. pct. You can't do much better than that for 12.5m a year.