Jack Etkin

A new development path has the 24-year-old righthander throwing harder.

The 19-year-old shortstop impressed team officials by showing up to instructional league with added strength.

The lefthanded reliever showed significant advancement with his arsenal this summer while working through a throwing program.

The 20-year-old Dominican lefty flashed three plus pitches at times and appeared unfazed while facing experienced hitters at the alternate site.

Josh Fuentes seized an unexpected opportunity and produced, all while impressing the Rockies with his energy level.

The 2014 second-rounder overcame setbacks and injuries to make his big league debut on Aug. 8.

The 2018 first-round pick used summer camp to make changes to his delivery and extension.

Vilade was drafted as a shortstop but has begun learning how to play the outfield corners as he embarks on an assignment to Double-A.

Pitching at the hitter’s haven that is Lancaster helped focus and boost the 23-year-old closer’s composure.

A loud pro debut in the Pioneer League affirms the Rockies’ favorable evaluation of Doyle’s tools and aptitude.

Focusing on his curveball and slightly changing his fastball grip helped the 27-year-old minor league veteran become a legitimate prospect.

The 23-year-old Dominican pitches in the mid-90s, but not until learning to slow his breathing did he consistently execute pitches.

After undergoing surgery in June to remove loose bodies in his right elbow, Castellani is back pitching in the Arizona Fall League.

The Rockies’ No. 7 prospect, Hilliard has set career-highs in home runs (35), RBIs (101) and doubles (29) this season.

The 23rd-round pick out of college pitched his way to high Class A thanks to a deep arsenal and confidence to throw any pitch at any time.

A second-round pick in 2016, Bowden held Double-A opponents to a .096 average before being promoted to Triple-A Albuquerque.

The 2018 first-rounder prioritizes development over results—which is impressive given how well he has pitched this year.

Enhanced selectivity at the plate has helped the former San Diego State shortstop establish himself in pro ball.

The 19-year-old Venezuelan got into better shape and improved his delivery and arm speed, which could pay off handsomely in 2019.

The 24-year-old reliever gets swings and misses above the belt. Now the Rockies want him to turn his slider into a weapon.