While many great, creative projects are coming out of Detroit, only a handful of them exist on the level that could affect political change in the city, especially in the realm of education, which if not revived will stop any true progress from happening.
There are a lot of healthy business developments (see Dan Gilbert), but it's been argued his developments are insular and not doing the community as a whole much good. Phil Cooley is doing a lot of stuff for the Corktown community, which has that area buzzing, at least economically, and is indeed creating a more accessible business climate for small-business owners.
Some initiatives are doing a great job of reaching out to more of Detroit's citizens, not just the young people moving, but for the generational Detroiters who have lived here all their lives, and don't necessarily see the city as the glowing beacon of opportunity that many young entrepreneurs and individuals do. I most of the ideas are concrete enough to help stimulate the economy, and they are creating the needed buzz, but the social impacts still lack for the greater city of Detroit.
But, as Doris said, every dollar and drop of perspiration counts. My .02¢. :]