It will be sad if Chelsea falls below the Premier League. Is it really possible? I can't even imagine it.
It is possible that Chelsea lose the remaining 5/5 match of the season, but I don't believe that has really happened to them this season. I know the competition for Chelsea is over, especially for the Premier League title, the Champions League zone and the Europa League zone. So Chelsea is just focused on surviving in the Premier League and as soon as possible to get a coach who is commensurate with the team's big name.
Chelsea can probably win their last 2/5 match for this season, so my assumption about that possibility is that they only lose to Manchester City, Manchester United and Newcastle United. Meanwhile Chelsea can be expected to win against Bournemouth and Nottingham.
Yes Chelsea will end the season with the worst record in history. This season there are no proud achievements for the team from London. But for the remaining matches the Blues have the chance to beat Bournemouth and Nottingham by 6 points, but that is of course no guarantee either. But at least Lampard should be able to at least add one more point to survive in the Premier League.