Can the D-backs rotation hold up for a deep post-season run?

[lilyq260601]

With the summer ramping up, the NL West race is looking like it's going to be an absolute dogfight all the way into September. The Dodgers are obviously doing their usual thing, but I'm looking closely at how Arizona is managing their pitching staff right now.

Last year's run was incredible, but a lot of that came down to hot streaks and young arms stepping up massively under pressure. My brother actually went out and bought a Brandon Pfaadt jersey (https://www.mlbgameshop.us/231-mlb-game-jersey-shop/240-arizona-diamondbacks-store/305-brandon-pfaadt-arizona-diamondbacks-jersey-for-sale-online) right after the NLCS because he was so high on the kid's poise. But looking at the broader metrics lately, the bullpen workload is starting to creep up again, and the back-end consistency isn't quite where it needs to be if they want to repeat that kind of magic.

If they don't look to add another solid depth arm before the trade deadline, I'm worried the top of the rotation is going to be completely gassed by the time October rolls around.

Do you guys think the front office stands pat with the current group and hopes for internal development, or is there a realistic trade target on a struggling team that makes sense for them right now?