After Bangladesh’s prime minister resigned in the face of violent unrest, one name has emerged as a possible caretaker until new elections are announced: Muhammad Yunus, a Nobel laureate known as the “banker to the poorest of the poor” and a longtime critic of the outgoing leader. Sheikh Hasina was forced to flee the country Monday after weeks of protests over a quota system for allocating government jobs turned into a broader challenge to her 15-year rule, which was marked by a rising economy but an increasingly authoritarian streak. The army has temporarily taken control, but it is unclear what its role would be in an interim government after the president dissolved Parliament on Tuesday to pave the way for elections.