One common theme at this year's trade deadline appears to be the Philadelphia Phillies. The team is far from contending and has a lot of movable pieces, including the likes of Cole Hamels, Jonathan Papelbon, and even perhaps Chase Utley. 

However, one oft-mentioned trade possibility for Philadelphia is center fielder Ben Revere. According to Ken Rosenthal of FOX Sports, Revere is being scouted by opposing teams, with the Angels having earlier interest. 

As Rosenthal notes, Revere is the odd man out in an outfield that is likely to be getting Domonic Brown and Cody Asche (who is transitioning to the outfield) back from Triple-A Lehigh Valley. Odubel Herrera, the Phillies' Rule 5 draft pick, can play center and looks to be going nowhere thus far this season. 

The Phillies did have interest in moving Revere earlier this year. He is scheduled to be a free agent at the end of the 2017 season. 

In 159 plate appearances this season, Revere is slashing .268/.314/.356/.670. One promising thing about Revere's offense this year is that he has almost as many walks (9) in 39 games than he had last year (13) in 151 games. However, Revere did lead the NL in hits last season and posted a .306 average. Nonetheless, he is an interesting trade target all the way around. 

--Devan Fink

Seeing a trade, especially a significant one, is rare in May, but today the Cubs and Mariners agreed to a deal that does register as significant, with the Cubs moving a starting-caliber catcher who had to sit behind starter Miguel Montero. 

The clubs announced the move of Cubs catcher Welington Castillo to the Seattle Mariners in exchange for a right-handed relief pitcher in Yoervis Medina.

The Mariners have been in search of a more productive catcher than their 24-year-old Mike Zunino, who is hitting just .179/.241/.358/.600 (70 OPS+) in 116 plate appearances thus far this year. While Castillo has not been absolutely stellar offensively this year, his pedigree definitely makes him an immediate upgrade over the struggling Zunino. 

Castillo is a 28-year-old with just over three seasons of service time heading into 2015, making him an inexpensive option through his final three years of team control. He signed to a $2.1 million deal this season as a final pre-arbitration player. 

In fact, Zunino's slash line this season is actually better than Castillo's, as the latter is hitting just .163/.234/.349/.583 in 47 plate appearances. However, Castillo has made just eight starts this season, so most of his plate appearances have been off the bench, where a player isn't likely to be in the game. 

Castillo has a career .252/.320/.398/.717 line, so history suggests that as he transitions back to a starting role, his offense will improve. Defensively, Castillo has been very solid, totaling 25 defensive runs saved in his 2425.2 innings at catcher. 

With a surplus of catchers on the roster, the Cubs needed to move Castillo, especially for a position of need. 

That's exactly what they got in Yoervis Medina, a strong right-handed reliever that has only two seasons of big league service time. The 26-year-old Medina will be a welcome sight in a Cubs bullpen that has the eighth-highest ERA in baseball. 

Over the course of his career, Medina is 10-9 with a 2.82 ERA (3.74 FIP) in 137 innings out of the Mariners bullpen. This season, the Venezuelan is 1-0 with a 3.00 ERA (4.49 FIP) in 12 innings. 

Medina was able to dial up the fastball last year, averaging 94.9 mph with his heater. However, it isn't quite the same this year, averaging 92.4 mph. It may be due to heat up as the weather heats up. Medina also offers a two-seamer/sinker and a knuckle-curve. 

--Devan Fink

After the firing of Mike Redmond yesterday, there was practically round-the-clock speculation over who was going to be the Miami Marlins' next manager.

Reports from last night and early this morning stated that the Marlins would be moving general manager Dan Jennings to new duties as manager of the ball club. Many different reactions came about from that, with Jennings never having any professional playing or coaching experience, despite being considered "a great baseball mind."

The Marlins brought those reports into reality this morning, as they officially announced the demotion/movement of Jennings from the general manager position to team manager. Miami also announced that Mike Goff, an Advance Scout, will be their next bench coach. 

"We can't think of anyone better suited for the job than Dan Jennings - one of the people responsible for putting these players together, who can now play a more active role in getting the most out of them," Marlins owner Jeffrey Loria said in a team press release. "DJ is a passionate baseball man with decades of experience in multiple Major League roles." 

The 52-year-old Jennings has been in baseball for 31 years and has been with the Marlins for 13 seasons (including the current season). He was first hired by the Cincinnati Reds in 1986 to be a scout and has worked his way up through the ranks in the front office. 

Jennings has not coached baseball since coaching the Davidson High School (Mobile, AL) team over three decades ago. While this is an interesting move by the Marlins, it is yet to be seen if it will help improve their disappointing 16-22 record.

--Devan Fink

Following the Marlins being shutout by the Braves 6-0 today, Miami management announced some new changes, including the firing of manager Mike Redmond, as well as the firing of bench coach Rob Leary. 

This comes after reports earlier in the season that said that owner Jeffrey Loria was considering replacing Redmond following the Marlins terrible 1-6 start. They have rebounded since then, going 15-16. Despite this, Loria likely wasn't impressed with Miami's performance. 

Redmond has been the Marlins manager for the past three seasons, guiding the team to improvement in 2014, finishing them fourth in the NL East with a 77-85 record. That serves as an improvement from 2013, when they went 62-100. 

The Marlins will officially announce their next manager on Monday in a press conference at 11:00 A.M. eastern. Brett Butler, Bo Porter, Wally Backman, and Jeff Conine have been connected to the job. Conine was reportedly going to be the Marlins next manager, but the club insists otherwise. 

--Devan Fink

MAY 14: Tulowitzki will not ask for a trade from the struggling Rockies, reports MLB.com's Thomas Harding. 

MAY 12: For months, whether the Colorado Rockies would move superstar shortstop Troy Tulowitzki was a much debated topic throughout baseball, by many inside and outside the game. 

A trade may finally be coming. 

According to Joel Sherman of the New York Post, Tulowitzki is going to meet with his agent Paul Cohen on Thursday to discuss whether the shortstop should request a trade from Colorado, who is 11-17 and buried at the bottom of the National League West. 

Tulowitzki has reportedly wanted out of Colorado for quite some time now. However, Ken Rosenthal of FOX Sports reports that the Rockies aren't quite ready to move him. 

The Mets, Mariners, Pirates, and Padres are teams that Sherman lists as possible suitors for Tulowitzki. The Mets have been heavily rumored as a possibility for him throughout the offseason, while the others could be a good fit depth-wise. 

On the season, Tulowitzki is hitting .307/.317/.495 (107 OPS+; 0.4 rWAR) with two homers and 10 runs batted in over 104 plate appearances this season.

--Devan Fink