It seems like the O's may be on to something. Take a good but injured player in the Rule 5 and rehab him for most of the year calling him up late so that the service time stretches into the following season. They only need to keep him on the major league team for 90 days and not an entire season. Teams will often leave injured players unprotected. I'm not sure if this was the plan all along but, it is certainly a way to "work" the system.