All those "young stud pitchers" that former President of Baseball Operations Andy MacPhail added over his tenure haven't had a great amount of success yet.
Zach Britton enjoyed some success as a rookie last season. His numbers weren't bad at all, but he has a lot of work to do.
Brian Matusz (pictured) looks to rebound from a historically awful season after showing immense promise in late 2010.
Jake Arrieta needs to improve as well, but after having a bone spur removed from his pitching elbow this offseason, his numbers should climb this year. And Chris Tillman, well—let's just say the O's would be pleased if he became a serviceable MLB pitcher at this point.
However, the first three of those four guys are coming into this season with something to prove, and they have to actually fight for their roster spot after GM Dan Duquette added a good bit of starting pitching depth to the team.
Britton was a bit sore early in camp, but is working his way back great and is coming off his strong showing of a rookie year.
Matusz's velocity has apparently come back to about 91 mph, which is huge for him, and he's looked sharp all spring.
And as I said, Arrieta should have better command and breaking stuff now that his arm is fixed.
If those three can live up to their hype (and I say they're about due to), and any number of Tommy Hunter and the new acquisitions Jason Hammel, Wei-Yin Chen and Tsuyoshi Wada can turn in solid seasons, this pitching rotation could actually turn from terrible on paper to pretty good in reality. Enough to have a fighting chance at a winning season, at least.