On this week's Pipeline Podcast, Jim Callis, Jonathan Mayo and Tim McMaster take a look at the prospect wish list for 2019 -- as chosen by the fans -- including Peter Alonso, Vladimir Guerrero Jr. and Forrest Whitley being called up to the big leagues. They also discuss the 5 most improved farm systems in baseball.

On the MLB Pipeline Podcast, Callis, Mayo and McMaster are your tour guides through all the unfolding stories and breaking news of baseball's top prospects. Each week, you'll find out about the stars of tomorrow from the guys who know today. Look out for new episodes on Thursdays. Download, subscribe and help others find the show by leaving a rating and review on iTunes or your favorite platform.