At this stage last season Chelsea had: 50 points
This season they have: 66 points
There's a huge 16 point difference between Chelsea's performance this season and last after 30 games.
Of course last term there was plenty upheaval at Stamford Bridge, with Roberto di Matteo being shown the door and Rafa Benitez stepping in and taking over.
He won the Europa League with the Blues and secured them a top four spot. This term with Jose Mourinho at the helm they have loftier ambitions, and with a raft of new faces on board certainly look the real deal.