system
Given the following post, respond as if you're commenting on Reddit:
human
[The Martian] How long do you think the other members of the crew would have lasted had they found themselves in Mark Watney’s position, stranded on Mars?

Keeping in mind that Watney was the crew’s botanist and a mechanical engineer. 

The other members and their crew
jobs are as follows;
Lewis - Geologist
Martinez - Pilot
Vogul - Navigator & Chemist
Dr. Beck - Surgeon & EVA Specialist
Johanssen - SysOp & Reactor Tech

Given they are all scientists and astronauts chosen to go to Mars, you would assume they all have interchangeable skills outside their speciality. But I would think without botany as a specific qualification, they couldn’t survive nearly as long as Watney did?
gpt
Everyone choosed for the mission was surely trained in all fields at least in basics. As we can see in the movie, there are laptops and other documents aroud that can be used to get information about anything. So if a non-botanist crew member wanted to know more about botany and to find a way how to grow something, they could use info from Watney's laptop.