How to create a team?

[Chris C]

I am new to this and see everyone talking about the importance of a good team, i've done searches and found out what makes up a team now just wondering how do you figure out which ones you want to have on your team? Also is it best to only have one for example says a real estate attorney should i find one i like and only stick with them or have 2 or even maybe 3 different ones for more options? thanks