<prompt> Translate the following text to EnglishHata hivyo, washiriki walikubaliana kwamba hakuna risasi ya fedha kwa ajili ya kuongeza ufanisi wa bodi za wakurugenzi katika jukumu lao la usimamizi wa usimamizi na kulinda wanahisa.  <response>: However, participants generally agreed that there is no silver bullet for enhancing the effectiveness of boards of directors in their role of oversight of management and protecting shareholders. 