The bar is set ridiculously high for Chelsea managers. Mourinho, Chelsea's greatest manager, was sacked after a slow start to the season. Carlo Ancellotti, who after having won the double, came second, was duly sacked as well. Chelsea have had 7 managers in 8 years and that tells its own story. Roberto Di Matteo's position as manager is very tenuous given the fact that he was only offered a one year contract. With Pep Guardiola lurking in the shadows, Di Matteo has to convince Chelsea owner Roman Abrahamovich that his appointment is more than an extended interim assignment. Below are three things he needs to do to earn his stay.