That's the number of roster moves the Orioles have made so far this season. I actually like the way they are fully using the 40 man roster this year. The 40 guys are there for a reason. I could see it becoming a new trend around the league.
I'd actually like to see MLB use the NFL roster model. While the NFL lets you carry 53 and suit up 46, I'd like to see MLB go to, say, a 27 man active roster, and allow them to suit up 25 on any given night.