The Diamondbacks have had an incredible off season, arguably the best since they signed a certain left-handed hall of famer. With the addition of Jordon Montgomery, they added three of the top fifteen free agents, and strengthened a team that was already play off proven. Even with the injuries they are already facing, this is a strong team and will compete against the best in the league.
On the other hand, you have the Rockies. They went 59-103 last season and in response did... nothing. The modern record for losses in a season was the ‘62 Mets with 120.