Poland's President-elect Andrzej Duda says the current government shake-up is not enough to restore confidence in the establishment and promises better rule if a new team comes to power in fall elections.

Five top officials resigned unexpectedly Wednesday, including Parliament Speaker Radek Sikorski. All were involved in a 2014 scandal in which their conversations with businessmen and lobbyists were illegally taped in restaurants. Secret files from the investigation into the tapings were illegally posted on Facebook this week, four months ahead of a general election.

The ruling Civic Platform party did not face any major consequences last year when the leaked recordings shocked the public — but it is now.

Duda, who spoke Thursday, takes office Aug.6 and is from the opposition. He advocates the change of the ruling team.