The sequence for getting clear on the kind of involvement you need is:
Use the Return on Involvement Assessment Tool to think through the risks and rewards of involving others in your work or going it alone.
Based on this analysis, determine if it makes sense to tackle the work in front of you without involving anyone else. If it does, go to it and get the job done.
If you've gotten clear that you want to include others in your efforts, decide what kind of involvement will be most useful in your particular circumstances:
Know-How Involvement
Arms and Legs Involvement
Caring and Commitment Involvement
Teaching and Learning Involvement