Last Week's Definition:
Being an effective leader requires an understanding of your role in the larger picture of the project or company as well as a tuned sense of one's shortcomings and prejudices. If you are aware of your own tendencies, it is easier to notice when they affect your actions.
New Definition:
Being an effective leader requires an understanding of your role in the larger picture of the project or company, a tuned sense of one's shortcomings and prejudices and a realistic view on team equilibrium. Groups cannot be expected to function optimally immediately, an good leader allows a team to mature before judging too harshly.
Analysis:
The takeaway message I got out of the Komives reading was the need to really watch the pace of a group. Understanding that productivity can ebb and flow over time, and to not try and force a group to meld immediately. I found the Yoon reading generally inapplicable, as most of their data is outdated in the fast paced field of digital interactions.
Komives, S. R., Lucas, N., & McMahon, T. R. (1998). "Interacting in Teams and Groups." Exploring Leadership: For college students who want to make a difference (pp. 165 - 194). San Francisco: Jossey-Bass.
Yoon, S., & Johnson, S. (2008). Phases and patterns of group development in virtual learning teams. Educational Technology Research & Development, 56(5), 595-618.
Note: UThink Blogs were down Saturday and posting then slipped my mind until today.

I'd be curious to know a bit more about why you consider Yoon outdated? I can understand on the technology side, but I'm less convinced that the interactions have changed.
Grade: 9 out of 10 points
Clarity of the new definition: 2 points out of 2 possible
Thoughtfulness of the analysis: 5 points out of 6 possible
Grammar, spelling, and APA style: 2 point out of 2 possible