The Pittsburgh Pirates
This is, to me, the most intriguing team on this list. They have, perhaps, the best options for the Rockies and the Pirates’ pitching coach, Ray Searage, has helped many pitchers get their career back on track when they were at a crossroads since he became the Pirates pitching coach in the middle of the 2010 season.
These reclamation projects include A.J. Burnett, J.A. Happ, Francisco Liriano, Edinson Volquez, Arquimedes Caminero, Jason Grilli, Joe Blanton, Vance Worley, Ivan Nova, Neftali Feliz, and many others.
Jon Gray could also join that list and give the Pirates a very formidable rotation including Chris Archer, Jameson Taillon (3.20 ERA in 32 starts last season), and Trevor Williams (3.10 ERA in 31 starts in 2018).
On the major league roster, the players that the Rockies should most be interested are their outfielders.
Right-fielder Gregory Polanco: 2018 stats: 130 games, 23 HRs, 81 RBI, 32 doubles, .254/.340/.499 slash line, and 128 OPS+. Defensively, he had -5 DRS in 2018 but he had 3 DRS combined between 2016 and 2017. Contractually, he is owed $26.3 million over the next three years, which takes him through his age 29 season. After that, there are team options for 2022 and 2023 for $12.5 and $13.5 million with a total of $4 million in buyouts.