Nothing is impossible, Chelsea can put up a good performance, while Liverpool and others begin to lose points. But from their present display I don't see Chelsea winning the English Premier League. They have been inconsistent and showed less drive to compete for this trophy. I see them finishing in top four and nothing more except something changes. As for Manchester United, they should just ensure they don't go on relegation and start preparing for next season.
Who's even talking about Chelsea winning the English Premier League title this season? Unless the person's knowledge about the performance of the top four teams in the league table is very limited. Chelsea can only fight for a place in the top four of the league which we all know is very competitive at the moment but though it's still mathematically possible for them to win the league this season, but I think will be impossible for such thing to happen at the end of the season.
Chelsea's perform is not good enough to win this league. In my opinion Chelsea's performance is not comparable to any other league. In the league you are talking about, I think they can win it only if they play well, otherwise they will not be able to win that league either. Because Chelsea has ruined themselves. If they were not weak, they could have made themselves strong. Chelsea is currently making themselves strong which cannot be achieved without hard work and struggle.