Then why not utilize them in that role now rather than as pieces you trade for rentals? If these guys can turn into Giles/Smith types, why don't you just go ahead and put them in the pen while you have a chance to win instead of screwing around? Get rid of Blevins and Tomlin and fill those spots with Wilson/Ynoa/Weigel/Muller/Davidson types who can give you multiple innings right now AND be rotated on the Atlanta-Gwinnett shuttle for the next few years?
If someone would make Snitker quit yanking the guys he's been given to go multiple innings after one inning regardless of how they're pitching, the need to get 6-7 innings out of every SP would be greatly reduced. Unless they've made the decision to turn Newk and Touki into high-leverage weapons for good, the argument against using some of these really good arms we have in the pen makes sense - if you plan to continue developing them as SPs, it is pretty stupid to use them as 1 inning RPs. However, if Snitker would use them the right way, that would go a long way towards "fixing" the pen. There's very little reason Newk or Touki should only pitch one inning when they're called on, and the same would apply to Wilson/Ynoa/Weigel/Muller/Davidson.