system
Given the following post, respond as if you're commenting on Reddit:
human
[MCU] In Avengers: Endgame, would the time heist have been (as) successful if the heroes had been replaced by those who had been snapped away in IW?

Let's say that Stark is there (since he was needed to make the time machine), but beyond that everyone who was snapped in IW is present, while those who weren't snapped previously aren't there (i.e., they got snapped instead).

Is the time heist as successful?
gpt
If the snap is inverted, then the Pyms are there and the good guys have all the Pym particles they could hope for so they could keep trying until they succeed. Assuming that someone other than Ant-Man comes up with the basic idea to attempt time travel. Brilliant as Stark is he still needed Scott to make the initial suggestion.