As if Detroit doesn't have enough problems these days, the president of the city's school board offered the shocking admission that he can't pen a coherent sentence. Otis Mathis, who oversees the academic future of 90,000 public school students, told the Detroit News that he's a "horrible writer" after reports surfaced that he sent a Feb. 29 e-mail to the financial manager of Detroit Public Schools that was rife with spelling, punctuation and usage errors. "If you saw Sunday's Free Press that shown Robert Bobb the emergency financial manager for Detroit Public Schools, move Mark Twain to Boynton which have...