It’s been more than a year since the announcement of Roger M. Buergel’s appointment as director of Documenta 12, yet many of the questions that first accompanied the emergence of this little-known curator from Lüneburg, Germany, on the international stage remain: Is Buergel a logical successor to Catherine David and Okwui Enwezor? Will he offer, as art historian Sabeth Buchmann wondered in these pages last February, “less political discourse in exchange for art with a capital A”? A recent visit to Buergel’s “How Do We Want to Be Governed? (Figure and Ground)” (cocurated with Ruth Noack) at Miami