Arsenal manager Mikel Arteta has been successful in rebuilding the club he once captained, but he did undergo an unusual route into management. Arteta won two FA Cups as an Arsenal player before retiring in 2016, and immediately became Pep Guardiola’s assistant at Manchester City. He then returned to Arsenal in 2019 with the club in crisis after Unai Emery’s failed spell in charge, and after a long-winded process of resetting the culture and revitalising the squad, his side are now competing for Premier League and Champions League glory. Arteta initially joined Arsene Wenger’s side in his play…