good /bad partners?

[mikeref]

I am aware that this topic has been discussed before. However I do believe that it is worth some thought at the beginning of the new season.
What are the qualities and characteristics that make a good partner? How do you become a good/bad partner? What are the most important chatacteristics you look for in a partner? How do you try to be a good partner? What do you do when you work with someone you deem a bad partner? Any other thoughts on being a good partner are welcome. Thanks for your thoughts.