Not a "beef" really - shouldn't be a particularly big deal.
Mainly just worry about having too many of these types of guys around taking innings that could be better spent on challenging some of the kids - and as much as I hate to admit it, we've seen the Braves do that before. There's really not much of a reason for Newcomb and Sims to go back to AA (IMO), and Weigler's pushing to become a fast mover like Fried is. That's 4 guys who could make a legitimate case for spending time in Gwinnett's rotation at some point this year on top of Collmenter/Wisler/Blair.
I just personally feel like the Colon and Dickey signings and Garcia trade were made to buy what the brass hopes is a minimal amount of time while sending the message that Coppy mentioned when he said that if "they (meaning Wisler and Blair) didn't like going back down that they need to pitch better". They traded away several of those AAAA/swingman types to clear innings (and 40-Man Roster slots) to allow them to pitch on regular rest, etc. so they'd be ready to step in if/when someone comes calling about the veterans. My fear is that the big club is playing pretty well when that happens and the brass wants too much in return for them.
My personal "goal" would be to have a rotation that consists of no one older than 27 by the deadline - that way you give Wisler in particular a Swanson-like "audition" for the last two months. "Sink or swim, but don't think you haven't been given an opportunity to lock down a spot in the rotation - if you aren't ready by the end of this year, it may be time for the Braves to move on."