Recently, one MLB insider who finished up attending the General Managers meetings in Las Vegas last week indicated that the Colorado Rockies were looking for more and more pitching.

That's not surprising because that pitching staff in 2026 was less than stellar. Starters didn't provide length, which taxed relievers to pile up innings. The combination just didn't help the Rockies at all, sending the ballclub to a fourth straight season with 100-plus losses.

Who might be able to stop the bleeding, so to speak, for the Rockies? One name that could be on the team's list is veteran left-hander David Peterson.

Peterson was drafted in the 28th round of the 2014 MLB June Amateur Draft by the Boston Red Sox when he was at Regis Jesuit High School in Aurora, Colo. Then, in the 2017 MLB June Amateur Draft, the New York Mets drafted him in the first round (No. 20 overall) out of the University of Oregon.

In looking at his Baseball Savant profile, Peterson focuses on using five different pitches. They include a sinker, a four-seamer, a slider, a changeup, and a curveball. That four-seamer clocked in at 92.5 mph last season, while his sinker busted up to the plate at 92.1 mph.

According to his 2026 MLB Percentile Rankings from Baseball Savant, Peterson finished in the "great" area in two different categories. One of them is in his extension at 7.2 feet. Extension, in this case, measures how far off the mound, in feet, a pitcher releases the pitch.

As a left-hander, Peterson wants to make sure his arm angle corroborates with what pitches he throws on a regular basis. His career pitcher arm angle percentage has ranged between 36 degrees and 43 degrees. The past four seasons, though, has seen Peterson level out between 40 degrees and 41 degrees.

His ERA has been north of 4.00 over the past couple of seasons, which doesn't make Rockies president of baseball operations Paul DePodesta feel comfortable. Still, Peterson's presence in the big leagues can bring another level of experience to the Colorado pitching staff.

Peterson spent the first six-plus seasons of his MLB career with the Mets. Later last season, he was traded to the Chicago Cubs, where he finished up his 2026 work. His ERA with New York last season before he was traded stood at 6.09, which was just another thorn in an overall bad season for the Mets. 

What was Peterson's best season in the major leagues? Record-wise, that goes back to 2024, when he had a 10-3 overall mark. In 2025, though, Peterson was named a National League All-Star and finished up with a 9-6 mark.

Can Peterson become part of the Colorado pitching core? It might be a good fit for Peterson to either become a fourth or fifth starter. Also, Peterson could be viewed as a guy who can eat innings and give the Rockies some length.

The pitching staff will be a focus for new pitching coach Ethan Katz to put together.