Liam Rosenior lasted just 106 days as Chelsea head coach, and the writing was on the wall from his second day in the job. Opting to sit in the stands alongside co-owner Behdad Eghbali rather than make team selections during a 2-1 defeat to Fulham, the 41-year-old immediately projected inexperience. His tenure unraveled through a string of gaffes: claiming players were "respecting the tool" while surrounding referee Paul Tierney, boasting about managing a school team at age 11, and passing a tactical note to Alejandro Garnacho in the 85th minute of an 8-2 aggregate Champions League loss to PSG.

Under Rosenior, Chelsea failed to beat any Big Six rivals, losing three times to Arsenal and suffering defeats against Manchester City and Manchester United. His authority crumbled further when he suspended Enzo Fernández for discussing Real Madrid, yet spared Marc Cucurella despite similar Barcelona comments—a decision that undermined him in the dressing room.

The BlueCo model, driven by sporting directors Paul Winstanley and Laurence Stewart, treats the head coach as a cog in a larger machine. Maresca was dismissed after demanding more recruitment power, while Rosenior was viewed as a "yes man" who never commanded respect. Sources say this failure might force a rethink, with Xabi Alonso, Cesc Fàbregas, Andoniiraola and Frank Lampard potential replacements—but Chelsea now face a credibility crisis of their own making.