Third baseman Kris Bryant is the most devastating power-hitting prospect in the game, and outfielder Jorge Soler (who homered off Mat Latos in his first big league at-bat) isn't far behind. Neither is catcher/outfielder Kyle Schwarber. Addison Russell is a rare five-tool shortstop, and Gleyber Torres might be another. Outfielders Albert Almora and Billy McKinney could be the tablesetters for all those run producers.
All that offensive talent obscures some intriguing pitching talent. C.J. Edwards and Pierce Johnson could impact Chicago's rotation in 2016, and Duane Underwood has more upside and a bit later ETA. The Cubs have invested heavily in mound help in the past two years, signing Jen-Ho Tseng out of Taiwan and drafting Jake Stinnett, Carson Sands, Justin Steele and Dylan Cease.
• Cubs' 2015 Top 30 Prospects list
Biggest jump: Gleyber Torres, SS (2014: 20 | 2015: 7)
Duane Underwood, RHP (2014: Unranked | 2015: 8)
Biggest fall: Christian Villanueva, 3B (2014: 11 | 2015: 24)
Players are graded on a 20-80 scouting scale for future tools -- 20-30 is well below average, 40 is below average, 50 is average, 60 is above average and 70-80 is well above average.
Hit: Kyle Schwarber (60)
Power: Kris Bryant (80)
Run: Jacob Hannemann (65)
Arm: Jorge Soler (65)
Defense: Albert Almora (65)
Fastball: Duane Underwood (65)
Curveball: C.J. Edwards (60)
Slider: Jake Stinnett (60)
Changeup: Jen-Ho Tseng (55)
Control: Eric Jokisch (55)
How they were built
Breakdown by ETA
Breakdown by position
Jim Callis is a reporter for MLB.com and writes a blog, Callis' Corner. Follow @jimcallisMLB on Twitter. This story was not subject to the approval of Major League Baseball or its clubs. This story was not subject to the approval of Major League Baseball or its clubs.