Stacking can be a controversial topic in many daily fantasy sports, but you can count baseball as a glaring exception. Here, it's universal.

Using multiple players on the same team on a given day presents you with the opportunity to double dip. If one of your players hits an RBI double, there's a good chance he drove in another one of your guys. When you get the points for both the run and the RBI, you'll be climbing the leaderboards fast.

Each day here on numberFire, we'll go through four offenses ripe for the stacking. They could have a great matchup, be in a great park, or just have a lot of quality sticks in the lineup, but these are the offenses primed for big days that you may want a piece of.

Premium members can use our new stacking feature to customize their stacks within their optimal lineups for the day, choosing the team you want to stack and how many players you want to include. You can also check out our hitting heat map, which provides an illustration of which offenses have the best combination of matchup and potency.

As always, the game in Coors Field will be ignored for stacking purposes. You don't need my expert advice to tell you that's a smart play.

Now, let's get to the stacks.

Oakland Athletics

With a 5.35 implied total, the highest outside of Coors, the Oakland Athletics look ready to rip against southpaw Matt Moore of the Texas Rangers.

Moore was brutal a season ago, firing 174 1/3 innings with a 4.86 skill-interactive ERA (SIERA), 18.7% strikeout rate, 34.7% hard-hit rate, and 41.9% fly-ball rate. The sample size isn't huge (196 batters) because teams usually go with righty-heavy lineups against Moore, but left-handed hitters did have good success against him in 2017, getting to Moore for a .428 wOBA and .614 slugging percentage. Of course, righties had success, too, with a 35.1% hard-hit rate and 45.4% fly-ball rate, and that trend has continued early on in 2018 as righties own a 43.1% hard-hit rate and 41.4% fly-ball rate off Moore.

Let's fire all of them puppies up.

Starting with the right side, Matt Chapman is $3,800 on FanDuel, but he looks to be worth it. In 2017, Chapman rocked southpaws for a 36.5% hard-hit rate and 63.5% fly-ball rate, and he's continued making strides as a hitter.

Leadoff man Marcus Semien deserves some attention at $3,600. Semien rocked the platoon last season for a 41.1% hard-hit rate and 41.7% fly-ball rate, and he's got a .973 OPS in 39 plate appearances against southpaws in 2018.

We can peep Matt Olson, too, at his salary of $3,100. Facing a lefty, Olson probably won't see gobs of ownership, but he posted a bananas .261 isolated power (ISO) against southpaws last season and hit sixth against a lefty as recently as Saturday (although he did sit Sunday against David Price).