[krieck]

Certainly you should use version control for all your projects.

With a lot of programmers, make sure you decompose the overall robot into a lot of decoupled modules. I highly recommend the command-based pattern for organizing the robot program, which breaks the program into separate subsystems and separate commands. You can give each subsystem to a different programmer and (hopefully) their code won't conflict with other subsystems. Later, programmers can write command classes that are (mostly) decoupled from other commands.

Also, consider programming on platforms other than the roboRIO. You can do sensor processing on Arduinos or vision processing on a Raspberry Pi, and then communicate back to the roboRIO.