If You're Hardcore: Which reserve Rockies are worth having?

The Colorado Rockies are officially a mess. Currently, the club has four starters -- Matt Holliday, Brad Hawpe, Troy Tulowitzki and Clint Barmes -- on the shelf. Infielders Jeff Baker, Jonathan Herrera, Omar Quintanilla and Ian Stewart, plus outfielders Ryan Spilborghs, Scott Podsednik, Seth Smith and Cory Sullivan are all currently competing for at-bats vacated by injured regulars. What's the story on the injured starters, and how does this group of reserves stack up in the short and long-term? Let's look at how events have unfolded in Denver:

April 26: Opening Day second baseman Jayson Nix is designated for assignment after hitting just .111 in 45 at-bats. Utilityman Barmes becomes the starter at second, with Baker the top backup.

April 29: Tulowitzki suffers an apparent leg injury. Baker is a late scratch due to a pregame hand injury.