Son Heung-min
Following Pochettino's move to Premier League rivals Tottenham Hotspur, Mitchell completed his switch in November 2014 to link up with the manager. He helped the club sign players such as Dele Alli, Son Heung-min, Kieran Trippier and Toby Alderweireld. In August 2016, reports suggested Mitchell was to leave the club "after his dream job turned into a nightmare" and he had fallen out with chairman Daniel Levy. In December, it was revealed Mitchell was serving his 16-month notice period.