The team is a group of people working together to achieve a shared goal.
A group of people working together whitout shared goal is not a team.

My first team is formed by my brother and I during tennis tournaments.
Two guys working together to achieve a shared goal: win. Which sometimes became: partecipate.
I suggest not to work alone, but to always work together.

Below three heroes that placed the team before the idea.
They wanted to do something together and at the end they chose something close their skill.

All computer science is grateful for this.

From left: Rod Canion, Jim Harris e Bill Murto
https://www.storiainformatica.it/compaq