i don't really see how you can sack ancelotti for what he did then keep villas-boas
avb hasn't done well imo. sure he's been stuffed by a disjointed, aging squad caused by chelsea chopping and changing managers all the time so finding it hard to really plan the building of future squads and a unfriendly player power situation constantly undermining him, but he's been hopeless tactically at chelsea, a good manager is flexible and plays according to the strengths the team, has but avb has crudely rammed everyone into his preferred system even though he doesn't have the personnel, see playing the high defensive line for ages despite the lack of pace and luiz's positioning making it suicidal.