Are you serious? Same could be said for Tillman. He had strong minor league numbers but could not translate it in the big leagues until 2nd half of last year. Minor league time for Britton is likely important because he came back from a very serious injury to shoulder, which in past used to be almost an automatic dagger to a pitchers chances to be good again. Plus in minors and his MLB time, he went through control issues that he can still work on, especially coming back from a major injury. Arrieta needs to prove he can stay consistent from inning to inning and can continue to work on his fastball control and offspeed pitches. He may be better served as just being a power reliever but spending time in minors with more innings might still help him.
-Tillman's value is much higher then the others. He has pitched better than the other young pitchers. I never said trade Tillman.
-I didn't say it wouldn't be better for THEM. I said better for the organization. Your points are supporting how it would be better for them.
Example: Arrieta goes to AAA and pitches well in 10 starts. Your telling me his value to another major league club goes up? Nope, he has to do it at the big league level, which is isn't going to get the chance UNLESS he gets the 5 spot and does well.
I stick to my guns, sending them down doesn't help us get more for them.