<prompt> Translate the following text to EnglishKatika suala hilo, IRS inaanza kutekeleza mabadiliko makubwa ambayo yatahitaji mafunzo kwa wafanyikazi wa mstari wa mbele na wasimamizi wao.  <response>: In that regard, IRS is beginning to implement significant changes that will require training for frontline employees and their supervisors. 