- Buy - Jonathan Lucroy
- Let's be honest, it's slim pickings at the catcher position. Now is the time to go and strike a deal for Lucroy. The Rangers catcher is hitting a respectable .270, but has only drawn 8 walks all season, so his OBP is only .310. Lucroy also has hit just 4 home runs while driving in 16. Expect those numbers to sky rocket in the second half as the summer heat helps the ball fly out of the ballpark.
- Sell - Evan Gattis
- In 42 games this season, Gattis is hitting .270 with a .340 OBP, while hitting 4 long balls and driving in 24 runs. Unfortunately for Gattis, Brian McCann is having an awesome first season with the Astros, and will get most of the playing time behind the plate. With guys like Carlos Beltran, Josh Reddick, Marwin Gonzalez and Yuli Gurriel on the roster, Gattis will get a number of days off as we head towards the summer as the Astros try to get all their guys regular playing time.
- Buy - Matt Carpenter
- There's no denying that Matt Carpenter has had a rough start to the 2017 season, but things are about to turn around in a big way. Carpenter is a career .281 hitter and has never hit below .270 in any season. Right now he's hitting just .239, but has started to turn things around in June, hitting .300 half way through the month. As he continues to hit in the summer months, expect his OBP to creep towards .380 as well.
- Sell - Justin Smoak
- One of the biggest surprises this year has been Justin Smoak of the Toronto Blue Jays. The switch hitting slugger is currently hitting .293 with 18 home runs and 43 runs batted in. Now let's state the facts. In his seven year career, Smoak has never hit .240 in any season, has never driven in 60 runs in a season, and has hit 20 home runs just one time. Smoak's bat will cool off, so it's time to sell him before it's too late.
- Buy - Rougned Odor
- This is the type of guy who is just killing fantasy owners in 2017. Last season Odor hit .271 with 33 home runs. That's monster numbers from a second baseman. So his .216 average and .255 OBP is frustrating for owners who took him with the 43rd overall pick (ADP on Yahoo). Just remember the ball takes off in that Texas heat, and Odor can only benefit from that.
- Sell - Starlin Castro
- Hitting is contagious and if you don't believe that, take a look at the Yankees lineup. Just about every player in that lineup is overachieving, including Starlin Castro. Castro is off to his hottest start of his career, batting .323 with 12 home runs. Castro is hitting 50 points higher than his career average and his OBP is 40 points higher than his average. He did hit 21 home runs last season, but other than that, he's never hit more than 14. So expect his average to start dropping and with that you'll see less long balls from the Yankees second baseman.
- Buy - Manny Machado
- This one might be a long shot, but if there was ever a time to buy Manny Machado, the time is now. His value will never be lower than it is now, and some owners might be tired of waiting around for their first round pick to turn things around. Machado is hitting just .218 with 12 home runs and 28 RBI and his OBP is under .300.
- Sell - Mike Moustakas
- In his 6th season, Mike Moustakas is on pace for a career year. Through 58 games, the Royals third basemen has hit 18 home runs, just 4 shy of his career high. Moustakas is a career .250 hitter, but currently is batting .278. Fluke? Could be. But he did bat .284 two years ago when the Royals won the World Series. He's a very streaky hitter and his season could take a tumble in a hurry. Go get yourself a safer player, and someone with a career OBP of more than .300.
- Buy - Dansby Swanson
- The Braves top prospect has been in the lineup since day 1 of the 2017 season and it hasn't been pretty. Swanson hit .156 in April and .216 in May. But he's turned his season around in June, .347 with two home runs, and 11 RBI. There's a reason the Braves have kept him around during his struggles, and he finally may be turning into the player the Braves thought he could be this year.
- Sell - Zack Cozart
- At 31 years of age, Zack Cozart is having a career season, hitting .321 with 15 doubles, 5 triples, 9 home runs, 33 RBI and a .411 OBP. However it's highly unlikely that he keeps this going in the second half. Cozart is a .252 hitter and has a career OBP of .300.
- Buy - Kyle Schwarber
- Of all outfielders with at least 150 at-bats this season, Schwarber has the worst batting average and is only one of two players hitting under .200. There's a reason Schwarber has a job in the big leagues, and it's not because of his fielding abilities. Hitting just .178, Schwarber has to turn things around before the Cubs send him to the minors. The power is there though, as he has 12 home runs on the season and 32% of his hits leave the yard. The Cubs know his potential and that's why he's still getting at-bats. In June, Schwarber is hitting .250 with a .368 OBP and 4 home runs.
- Sell - Aaron Judge
- It might sound crazy, but it's time to go and trade Aaron Judge. You've got the max potential out of him, and you can literally go out and trade for any player you want for him. He's hitting a ridiculous .338 with a .443 OBP. He leads the majors in home runs with 22, and runs with 58. I know he's must watch TV when he's up due to his ridiculous power and he's incredibly fun to root for, but he'll come back down to earth sometime soon. Take advantage of his amazing start.
- Buy - Jake Arrieta
- It's been a disappointing start for the Cubs and Jake Arrieta. Coming off a World Series title, the Cubs haven't really hit their potential this year and that goes for the entire roster. Arrieta is two years removed from his 22 win Cy Young season and over the previous three seasons he is 50-19 with a 2.42 ERA. Right now his ERA is 4.68 and his WHIP is 1.33 (1.08, 0.86, 0.99 over the previous 3 seasons). Arrieta is the type of guy who can turn things around in just one start. Expect the Cubs and Arrieta to have an amazing second half.
- Sell - Jason Vargas
- 9-3, 2.10 ERA, 1.09 WHIP. That's the year Jason Vargas is putting up on a Roayls team who are 30-34. He's having a Clayton Kershaw type season. He's 34 and in his 11th MLB season. I'm not buying it. Find somebody who is, and deal him.