In an attempt to reboot her re-election campaign, Sen. Mary Landrieu (D-LA) has fired her senior campaign manager and replaced him with her chief of staff, who also led her brother’s mayoral campaign.

Landrieu, who has fallen short of the 50 percent needed in the state’s jungle primary in November in almost every recent poll, fired Adam Sullivan just 27 days before her face-off with Rep. Bill Cassidy (R-LA).

Sullivan was hired back in 2013, but will now be replaced with Landrieu’s former chief of staff Ryan Berni. Berni spearheaded Mayor Mitch Landrieu’s New Orleans campaign.

“Like any of the Senator’s winning campaigns, we are tightening our senior strategy team and bringing on some of her long time advisers to help out during the last month of the race,” Landrieu spokesman Fabien Levy emailed POLITICO. “We know this will lead us to victory on November 4. Adam Sullivan remains as an advisor to the campaign.”

However, Berni is not the only switch for Landrieu’s campaign.

Landrieu has also called in another former chief of staff Norma Jane Sabiston to help her touch re-election. Sabiston has left her consulting firm temporarily to work on Landrieu’s campaign. And, Landrieu’s State Director T. Bradley Keith and Communications Director Matthew Lehner, both from her Senate Office, have made the switch over to her campaign team.