Chelsea have endured a miserable run, and the Portuguese has been let down by a number of his key players failing to perform to tactical instruction this season, with mistakes riddling their performances.
“In the Champions League this standard won’t be enough”, said Villas-Boas.
“We need to up the game and play with the ultimate desire.
“We then have Premier League fixtures and for our Premier League to be alive we need to make the most of the December games.
“In this period we have games against Newcastle, Manchester City and Tottenham and if we are able to do that then we can get it back on track.”
