When President Park announced her pick for prime minister one week ago, it was considered by many as a reflection of her commitment to reform Korean society.
Former supreme court justice Ahn Dai-hee's principles and integrity were highly touted upon his nomination.
It was said those traits would help him carry out sweeping reforms, despite the fact that he had butted heads with the president during her campaign in 2012 while spearheading the ruling party's political reforms.
But President Park's nomination quickly backfired after Ahn was accused of receiving privileges for his previous post in the private sector.
It was discovered that he made about 1.5 million U.S. dollars in a period of just five months last year, working as a lawyer after leaving the supreme court.
The president, who had pledged to root out cronyism in Korean society in the aftermath of the Sewol-ho ferry disaster, ended up nominating someone who was at the very center of it.
Ahn's surprise resignation Wednesday has dented the president's efforts to reform the government and to assuage public anger over the government's lax management of the ferry accident.
The president is widely expected to take more time to make her next pick, possibly after next Wednesday's local elections.
This means, the much-anticipated Cabinet reshuffle will not likely take place until after mid-June.
It's also uncertain as to when the president will name her new security advisor and intelligence chief.
And amid criticism over the latest personnel debacle, the fate of Presidential Chief of Staff Kim Ki-chun and other aides at the presidential office are also now in question.
Choi You-sun, Arirang News.