Martin O’Neill appointed Celtic manager after title-winning interim spell

Celtic appoint O'Neill as permanent manager

⚠️ **Articolo fuori scope**: questo è sport (calcio), non tech. Non appartiene a Warptech News. Se vuoi comunque il riassunto nel format richiesto: --- Celtic appointed 74-year-old Martin O'Neill as permanent manager on a one-year contract after guiding them to a domestic double in interim spells. The reversion to O'Neill after Nancy's failure underscores how organizational crises demand experienced leadership.