When the Phillies checked into spring training a year ago, a veteran team with most of its roster in place had a legitimate, healthy competition for jobs.

With several young arms pushing their way onto the roster, a transition was underway in the bullpen, from older, experienced players to younger, promising rookies.

The transformation continued throughout the season, too, as the likes of Antonio Bastardo, Michael Stutes and David Herndon became fixtures, while veterans J.C. Romero and Danys Baez were released.

The trend will undoubtedly continue this season. After a winter that saw only remaining two members of the 2008 World Championship bullpen depart, Brad Lidge and Ryan Madson, the relief corps overhaul is near-complete.

Knowing a healthy presence of...