Just to let you know how this quality might play out when you start working:

In group or team settings, people who do all the work themselves are not perceived as being smarter than everyone, or as being bent on proving that they are smarter than everyone.

They are perceived as unable to delegate and, sometimes, as overly anxious and too controlling for their own good.

They also might be viewed as unable to work well as a part of the team.

None of this is by way of sounding an alarm, but little-by-little, recognizing how difficult and unnatural it would be for you, start delegating small, well-defined tasks to those 2-3 friends who contributed nothing to the project last time.

I mean to say that IF you are on another joint project with him, start practicing delegation.

To choose a task for delegation, consider the following:

- the task should be well-defined
- the task should not be nebulous
- the task should not be ambiguous and subject to multiple interpretations
- the task should be at the level of complexity suited for that person - it should not be overwhelmingly difficult, nor should it be so "dumb" that the friend would feel it is below him

It sounds like a lot of rules, but in reality you simply choose something that is so well-defined that no quarrels or disputes might arise of disagreements as to whether your friend did what was asked, and, make sure it is at the right level.

Good luck - learning to delegate takes a lot of time, effort, self-reflection, and analysis, but it is worthwhile to do because so many modern jobs involve team worm.