I just picked him up in a keeper league and ran across this recent article on fangraphs.
"For the future, I believe the Braves will look to make Medlen a permanent rotation member. This gives Medlen some value in keeper and dynasty leagues, if that is made certain. Of course, most keeper and dynasty leagues allow for the selections to be made close to the start of next year, so a more clear picture will be painted of his role by then. But if the trade deadline has not been reached in your league, taking a risk on buying Medlen as a future starter looks like a good one to me. He is not a top tier starter by any means, but he combines extremely good command of three pitches with the ability to get both lefties and righties out. The Braves do not have much in terms of right-handed relievers or relief prospects, but their future rotation also looks a lot different now than it did earlier in the season. If he finishes off the year well, I expect Medlen to start next year in the rotation as well with an extended innings limit."
http://www.fangraphs.com/fantasy/index. ... he-future/