There's been a youthful movement during the 2015 season that's spilling over into the playoffs. MLBPipeline.com's Jim Callis and Jonathan Mayo join Ed Randall to reflect on how mature and impactful this season's rookie class has been and which pitchers and hitters should stand out in the Arizona Fall League. Plus, JaCoby Jones joins the guys to talk about the trade that sent him to Detroit for Joakim Soria and what he's focused on in the AFL.

The Arizona Fall League is off and running. MLBPipeline.com's Jonathan Mayo and Jim Callis join Ed Randall to spotlight players for a mock "All-Prospect" team, breaking down how the most intriguing players stack up against each other by position. Plus, Phillies prospect Andrew Knapp joins Pipeline to reflect on his monster year in Double-A and how he'll continue to improve in the Fall League.

They may have been low-profile acquisitions but now some of them have been difference-makers in getting their clubs to the Postseason. MLBPipeline.com's Jim Callis and Jonathan Mayo join host Ed Randall to spotlight guys like Matt Carpenter, Dallas Keuchel, J.A. Happ and Jake Arrieta and how they've come from obscurity to shine brighter than ever for their teams.

MLBPipeline.com's Bernie Pleskoff gives his scouting report on Yankees top-ranked prospect Aaron Judge.

Who are the top 25 rookies in Major League Baseball? MLBPipeline.com's Jim Callis and Jonathan Mayo have a friendly debate along with MLB.com host Ed Randall. Plus, Rockies prospect David Dahl joins Pipeline to share how he's overcome injury and what he'll turn his focus to in the Arizona Fall League.

What's contributed to Mets prospect Dominic Smith's bounceback in 2015? The left-handed first baseman joins MLBPipeline.com's Jonathan Mayo and Jim Callis to recap what's been the biggest difference-maker in his progress. Plus, the guys discuss other prospects who've turned their season around and breakdown additions to the Arizona Fall League roster.

MLBPipeline.com's Bernie Pleskoff gives his scouting report on A's second-ranked prospect Matt Olson.

Which rookies are making the biggest impact in the Major Leagues this season? MLBPipeline.com experts Jonathan Mayo and Jim Callis join MLB.com host Ed Randall to spotlight Slade Heathcott's game-saving three run home run, Miguel Sano's offensive leadership on the Twins and other rookies having major impacts on their teams' playoff implications.

MLBPipeline.com's Bernie Pleskoff gives his scouting report on Pirates top-ranked prospect Tyler Glasnow.

Corey Seager, Carl Edwards Jr., and Jackie Bradley Jr. are at the center of the baseball universe right now. MLBPipeline.com's Jim Callis and Jonathan Mayo joins MLB.com host Ed Randall to shine a light on recent September callups who are lighting up the Major Leagues and discuss how Red Sox center fielder Jackie Bradley Jr. revived his season in Boston.

MLBPipeline.com's Bernie Pleskoff gives his scouting report on Nationals top-ranked prospect Lucas Giolito.

In the baseball world, September's the month when dreams come true. MLBPipeline.com's Jonathan Mayo and Jim Callis join MLB.com host Ed Randall to breakdown which players could make their debut, who's going to shine in the Arizona Fall League, and talk about who was traded in the midnight hour of the waiver trade deadline.

MLBPipeline.com's Bernie Pleskoff gives his scouting report on Dodgers top-ranked prospect Corey Seager.