With the Cardinals closer questions apparently being answered by Edward Mujica, who has converted all 3 of his save chances, the Cards are still looking to shore up the rest of their bullpen.
As of today, the Cardinals have a bullpen ERA of 5.37, last in the majors. Most of this can be attributed to Mitchell Boggs, who struggled when placed in the closer role and has yet to sort things out. If you remove his 12.46 ERA in 8.2 IP, the Cardinals bullpen ERA is a more respectable 3.74.
However, the problem is that Boggs was expected to play a major role in the Cards pen. He was the main setup guy last season and, before Jason Motte's injury, he was expected to fill that role again this year.
With his struggles, Trevor Rosenthal has had to step up into the setup role, a role that he finally appears to be getting use to. After, blowing two saves a little over a week into the season, Rosenthal has managed 5 holds since then. He is still trying to find himself, as he hasn't been a...