July was a tough month for Mulvey. Not only did he have his worst month yet for the Red Wings, he also made his major league debut and was tagged for four runs on six hits while recording just four outs over two appearances before being sent back down to the minors. At 24, Mulvey is still young, but he's taken pretty clear step backs from last year in nearly all categories. Hopefully he can finish strong and reemerge as a rotation candidate for next season.
After a scalding hot start in Rochester, Valencia cooled off in the latter half of July but still finished with very respectable numbers. His inability to walk (just five in 36 games) has severely limited his ability to reach base, but he has clearly demonstrated that he can hit the ball at this level. Defense and plate discipline will be the main obstacles he must overcome to reach the majors.
Mijares posted good numbers for the Twins once again in July, with a solid strikeout rate and improved control. His peripherals haven't been overwhelming this season, but he has posted an ERA of 2.84 or lower in every month so far and has been one of the only reliable arms at the back end of the Twins' bullpen.
Revere saw his batting average bounce back a bit in July and flashed some extra-base power with two doubles and three triples, but the majority of his value stems from getting on base and using his speed, so seeing him draw just two walks and steal a season-low fives bases over the course of the month is disconcerting. In fairness, he did miss about a walk and a half at the end of the month due to a knee injury.
Sidelined by a pair of partial hamstring tears, Ramos missed the entire month of July and hasn't played in a game since June 12. There is hope that he'll be able to return for the final couple weeks of the season, but it could be that Ramos is done for the year and will finish with only 36 games played. It's always a shame when a talented prospect loses nearly an entire season to injury, but on the bright side Ramos still doesn't turn 22 until next week, so there is plenty of time for him to bounce back and put together a good career.