"Now what he needs is shock therapy to gain the heart of his people," Mr. Davutoglu said in an interview as he campaigned in his hometown, Konya, for a Parliament seat in next month's elections. "As early as possible." Asked what would happen if Mr. Assad failed to bring dramatic reform, Mr. Davutoglu replied, "We don't know. That's why we say shock therapy." Turkey has emerged in just a few short years as the most dynamic country in the region, with newfound political influence and a booming economic stake in the Middle East. But it faces a growing challenge in...