Winkler has minor league options so he's probably gone for either Keuchel or Minter when he comes back. The other spot will be between outrighting Blevins or faking an injury to Gausman to try and let him figure things out in the minors on a "rehab" stint.
Hopefully for Minter it's just that the car accident he injured himself in this spring cut short his spring training and they brought him back too soon to start the season. Since being optioned to Triple A he's been scoreless in 8 of 9 appearances and only walked two guys. He's only had three clean appearances which is very much the AJ Minter experience so I'm not expecting him to be a lights out closer, but hopefully he can come back as a productive member of the bullpen.
If Soroka's productivity doesn't fall off a cliff you have Soroka and Keuchel 1-2. Teheran has mastered the art of pitching ugly not allowing more than one ER in his last seven starts. Fried has his ups and downs. Who the hell knows what to expect from Folty. As far as the bullpen goes, Newk, Touki, Minter and Jackson provide a core and AA said they're likely going to add a bullpen arm closer to the trade deadline.
As for getting out of the NLDS with this staff, well if we win the division we're going to avoid the Dodgers which is nice.