I'll maintain that Neris was perfectly fine for a long while until these last 2 games. Bad series happen, and as JD noted part of yesterday's poor outcome in a win was due to him pitching to the situation.
But the greater point I made elsewhere is that the pen is not dripping with options. If Neris isn't throwing the 9th then he's still probably throwing no earlier than the 7th in close games. You could have Leiter close but you still need to bridge there and having Neris/Wesneski/Miller get you there is shuffling chairs.
One thing I'd like to see them do soon is send Little back down. He's clearly outside of Counsell's trust, and for good reason because he cannot consistently avoid walks. That's especially bad in this run environment, and with Leiter being a late inning option against LHP and Smyly looking functional as a 2nd lefty, there's several guys in Iowa who may be able to add to the circle of trust if they get a shot. I think you can make the argument for several different guys, I'd probably go with Roberts but Carl and McWilliams have some internal logic too. All 3 do require a 40 man spot though, and there isn't an obvious decision on who to cut since Almonte seems likely to return before his 60 day window would hit if you 60 day'd him(and that only kicks the can a few weeks down the road).