Chelsea have remembered how to do just enough to achieve
During Jose Mourinho's first stint at Stamford Bridge, he coached his side to win at all costs.
Play to the whistle challenge for every ball – and if all else fails, bundle in a last minute winner.
While Chelsea have been grinding out results in recent weeks, that resourcefulness has not really been in evidence. Until now.
In a dreadful performance, where Blues looked tired and clueless for practically the whole game, it fell to Cesc Fabregas to show that knack was back.
One shot, one goal, three points. That's a title-winning skill to have in the locker.
But the end of this season can't come soon enough for Chelsea
Fear not – there is enough fuel left in the tank to win this title. But there is very little more than that.
Many of Chelsea's new 'untouchables' look desperately in need of a break from the action – and Fabregas and Nemanja Matic looked principle among them during this leggy performance.
They won't be relishing the prospect of a post-season tour – and surely won't be dragged off to show their medals to the fans in Japan.
With seven games left – and four wins needed, Chelsea's biggest talents will be counting down the days, you can be sure.
Drogba is little more than a tribute act
There is far more to Didier Droga than goals – Chelsea fans know that about the legend.
He tracks back, provides muscle when needed in midfield and defence, and is a towering personality in the dressing room.
But it was the goals that got him that legendary status – and without them, he looks a pale imitation of his former self.
Drogba is not the one to blame – he is a third choice striker, and ano domini has caught up with him.
But Chelsea will be very glad to see Loic Remy back for next week's Premier League battle with Manchester United.
It's about time youth was paid more than just lip service
Flying all the way back from Nyon, where he had played a vital part in the U19s victorious UEFA Youth League semi final, Izzy Brown might have expected a kick of the ball.
But the 18-year-old spent the entire 90 minutes at QPR on the bench – and will presumably now clock-up some more air miles so that he can play in tomorrow's final.
Many of those watching were crying out for him to replace the ineffectual and tired Drogba – and it was a nonsense on the part of Mourinho that he didn't.
The irony of course is that, having sat out that win, Brown's day in the sun is now a match closer.
For when Chelsea are mathematical champions, Mourinho will have no reason to leave players such as him out.
Hopefully he, and others like him, will be given the time to impress – and to assemble a serious case for meaningful game time next term.
This fixture won't be missed next season
The dogfight is by no means over, but if QPR do go down – few with Chelsea loyalties will miss this fixture next season.
Not because this is a tricky place to win – which it undoubtedly has become. And not because the crowd is especially daunting – though they certainly made themselves heard today.
But because of the pain in the backside that the authorities have elected to make this match.
With a police presence to rival a G20 meeting – and with football fans' civil liberties relegated to a diabolical liberty, it just isn't a pleasant way to spend an afternoon.
The overkill, including people being arrested for street drinking, and potentially removed from the borough for some uncodified 'antisocial behaviour' just isn't an acceptable way to police a match.
Some may miss the west London derby – but few will be sad to see the back of the match-day experience.