system
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human
[Avengers: Endgame] Is there any logic to the teams sent on the different time heists?

As per title, is there any logic?

The New York heist team being the most overpowered makes sense as they are responsible for three stones. Let’s also say Thor was the most well suited for the Asgard heist, even if they are arguably wasting his offensive capabilities.

But then it gets strange. The Morag team is reasonably competent, but the team sent to Vormir, with the most unclear mission parameters, is composed of two non-powered humans?  

It seems Nebula didn’t know the full details of what happened to Gamora on Vormir, so it’s not a question of sending two people who loved each other. Even if it would have doomed the mission to failure, with what the Avengers knew, Nebula or a powered person from another team with more “cosmic” experience should have been sent to Vormir, or Rhodes due to his offensive potential in a fight. What’s Hawkeye or Black Widow going to do if a Thanos-level threat protects the Soul Stone?
gpt
There was a certain amount of guesswork when it came to making up the teams.

Naturally, they needed most of the team to head to New York for the three stones and Thor was obviously the only person who could be sent to Asgard, as you have guessed. 

Morag was more a matter of working with what they had. Nebula knew more about the region and people involved and Rhodes was there for backup if things got hairy. 

Vormir was... likely a gamble. The fact of the matter is that if a cosmic-leveled power was protecting the Soul Stone, none of the Avengers except Captain Marvel would be able to stand up to it. Since they didn't want to wait for her, it stood to reason that they'd send the two team members who were best at strategy and thinking on their feet because if they couldn't get the stone, no one could.