<prompt> Translate the following text to EnglishKama unavyojua, Januari iliyopita tulitoa kiasi kipya cha ripoti, Mfululizo wa Utendaji na Uwajibikaji, ukionyesha changamoto kuu za usimamizi zinazokabili mashirika yetu makubwa ya shirikisho na fursa kubwa za kuboresha utendaji wao.  <response>: As you know, last January we issued a new volume of reports, the Performance and Accountability Series, outlining the major management challenges confronting our largest federal agencies and the substantial opportunities for improving their performance. 