REPUBLIKA.CO.ID, WARSAW - Poland's prime minister designate, Ewa Kopacz, brought party rival Grzegorz Schetyna into her new government as foreign minister on Friday to try to neutralize a potential challenge to her authority.

Outgoing foreign minister Radoslaw Sikorski, one of Poland's most high-profile politicians on the international stage, is to be given the job of speaker of parliament, on paper the second most senior role in the state after the president.

Kopacz, announcing her new cabinet line-up at a ceremony at Warsaw's University of Technology, left the other big ministerial posts -- finance, defense, and treasury -- unchanged. 

She said her selections were intended to ensure continuity of the policies started by outgoing Prime Minister Donald Tusk, her mentor who is leaving for a senior post in Brussels, and to preserve unity in the ruling Civic Platform party.