Walter Mazzarri was looking to the future with Watford despite ongoing reports his position remains precarious.
The 55-year-old Italian was upbeat despite the 4-3 defeat at Premier League champions on Monday night.
“There were some positives and some not so, but it was a good game and we are still evaluating for next season,” Mazzarri said on watfordfc.com.
“When a manager loses a game like this they say he’s unlucky.”
The Hornets scored away from home in the league for the first time since January and the win at Arsenal, but Chelsea triumphed as Cesc Fabregas scored two minutes from time.
Sebastian Prodl was sent off for two bookable offences as Watford lost their composure towards the end.
There has long been speculation over Mazzarri’s future; however, with Premier League safety now secured, Mazzarri was keen to reiterate his satisfaction at delivering what will be a third consecutive season of top-flight football despite challenges.
“The most positive thing is that we had 40 points with six games remaining and many injuries,” he said.
“We have four defenders injured and we still played how we did (at Chelsea).”