By Giulio Piovaccari MILAN (Reuters) -Stellantis new CEO Antonio Filosa started his tenure on Monday by retaining his previous role as head of the key North American market, while avoiding major changes to the French-Italian automaker's senior management team.

Antonio Filosa is stepping into the role of CEO at automaker Stellantis with a host of challenges in front of him. Relationships with employees and dealers have fractured, the company is trying to grow retail market share,

Stellantis NV is reorganizing its top management ranks as new Chief Executive Officer Antonio Filosa begins his push to turn around the struggling automaker.