The Phillies have made a dramatic shift under Don Mattingly

Maybe a new voice at the helm is what the Philadelphia Phillies needed to turn their season around. After taking over for former manager Rob Thomson (9-19), interim manager Don Mattingly has seen more success (10-3). 

Under Thomson, the Phillies' offense and pitching staff were among the worst in Major League Baseball, while under Mattingly, both have seen a resurgence. According to Jeff Kerr of 97.3 ESPN, the offense under Mattingly has ranked as the best in baseball: 

• Batting average: .275 (first in MLB)
• Home runs: 19 (first)
• Slugging percentage: .470 (first)
• On-base percentage .794 (third)

The pitching staff had held its own, ranking: 

• ERA: 3.40 (11th) 
• K/9: 10.36 (second) 
• Batting average against: .236 (16th)  
• WHIP: 1.19 (11th)
• FIP: 2.96 (third)

The Phillies are benefiting from their players doing well, rather than Don Mattingly taking over for Rob Thomson

Has changing over to Mattingly helped the Phillies ... yes, but it hasn't been everything. Receiving production from the rest of the lineup and staff, outside of first baseman Bryce Harper and left-hander Cristopher Sanchez, has been the reason for the turnaround.

Harper has played to an MVP level this season and has done well to quiet his critics (Dave Dombrowski), who called him not an elite player. The two-time MVP has quietly hit .281 with a .938 OPS and 10 home runs.

Sanchez has pitched like he could overtake Pittsburgh Pirates right-hander and reigning Cy Young winner Paul Skenes for the award this season. Through nine starts, Sanchez is 4-2 with a 2.11 ERA and has not allowed an earned run and struck out 17 in 15.0 innings in May. 

Outfielder Brandon Marsh has been one of the pleasant surprises for the Phillies, as he is the major league leader in batting average at .353. Marsh is riding a 12-game hitting streak, has had 17 hits in May and has improved his hitting against left-handed pitching -- Marsh has eight hits and five RBI in 28 at-bats against lefties this season. 

Since returning from his recovery from thoracic outlet surgery, right-hander Zack Wheeler has slowly gotten back into his All-Star form. In three starts since returning, Wheeler is 1-0 with a 3.12 ERA and a 0.98 WHIP. 

Has Alec Bohm turned a corner?

Third baseman Alec Bohm has been one of, if not the worst, hitters in the Phillies lineup next to second baseman Bryson Stott. Through 37 games, Bohm has hit .180 with a .526 OPS. 

Bohm's poor performance led to his benching for two games in favor of infielder Edmundo Sosa, who has been great as the Phillies utility man. However, since returning from his benching, Bohm has done well, including having a two-home run game against the Colorado Rockies on May 9. Bohm had one home run up until that point, which came on Opening Day. 

After hitting .157 with a .395 OPS in April, Bohm may be turning things around, as he's hitting .296 with a .923 OPS in May.