An article on G.M.\'s efforts to revive downtown quoted College of Urban, Labor and Metropolitan Affairs Prof. Robin Boyle on the automaker\'s renovation of the Renaissance Center. \"It was the first of the silver bullets that were going to solve all the city\'s problems,\" said Robin Boyle, associate dean of the College of Urban, Labor and Metropolitan Affairs at Wayne State University in Detroit. \"The idea was that it would provide the city with a springboard to the 21st century.\"