I'm not saying I'm against group work. A few weeks ago, I joined the marketing committee for the community band I play in. This has worked out very well, a lot better than I thought it would. The reason for that is that I am able to work within the realm of my strengths rather than being forced to rely on my weaknesses. The person I have worked with mostly on this project is outgoing and action orientated. This person's approach complements well with my introverted, idea orientated mindset. This person told me that the ideas I come up with really gets her thinking when I present ideas in an environment I am comfortable in. Working together, we have accomplished a lot more than we would have if either one of us would have done if we had been forced to rely on our weaknesses rather than our strengths.
Forcing those into group work who would rather work quietly is counterproductive to success. Today's job market in America favors the assertive when in fact there are talented, capable individuals being overlooked simply because they are quieter. Both sets of people have their place. Those who are quieter work better in support roles alongside their outgoing counterparts, reigning them in when necessary. Those on the autism spectrum fall into both categories, many high functioning individuals are outgoing and many are quieter. The main idea is that people on the autism spectrum and those who are neurotypical, those who are introverted and those who are extroverted all work best when they can utilize their strengths instead of being forced to rely on their weaknesses.
Just something to think about.