Last season’s Premier League champions are currently fourth in the league standings, two points behind Unai Emery’s Aston Villa. Their results and performances propelled by a seemingly unshakable confidence at Villa Park.
Jurgen Klopp's chaotic Liverpool sit second, just a point off the top.
Then, sitting comfortably in eighth are West Ham, who have juggled domestic ambitions and European pressures perfectly thus far.
What's interesting about all three is each has made specific tactical choices in terms of personnel to improve results, underlying figures and overall performances.
Choices that could define the second half of the campaign.
Centre-backs seem to be the prized commodity of tactical systems in modern football and we have seen a lot of experimentation among the Premier League's elite teams over the past couple of seasons.
Under Emery, Villa are doing something similarly interesting with their use of centre-backs both in build-up as well as defending transitions. Most notably, Ezri Konsa and Pau Torres.
"He's put it in our minds that when we build up it is a three. And even when I'm exposed on the right, I'm very comfortable defending one-on-one," Konsa told Sky Sports as long ago as June.
"It's not a problem. It's something defenders have to do. It's a challenge that I always look forward to."
The emergence of the 26-year-old, who now must surely be a leading candidate for England's starting XI at next summer's Euros, as an option at right-back has been partly due to Matty Cash's greater upside as an offensive threat.
And so this season, whenever Cash and Konsa have featured together, it has been Cash playing effectively as a right winger, the position he originally broke through in at Nottingham Forest, leaving Konsa to protect the space behind.
Emery's high line is demanding on his defenders and so, having multiple mobile centre-backs who are always switched on in 1v1 duels is important, and where Konsa and Torres play their part.
This season, Villa have caught their opponents offside 82 times. The second-highest in the league are Spurs with 56, which shows just how effective they are at executing Emery's ideas.
With Torres, Emery has a supreme progressor of the ball from the left, allowing Lucas Digne to bomb forward and provide Villa's attackers with quality service.
The Frenchman is averaging 0.18 expected assists (xA) per90 and receiving 9.29 progressive passes on average, up from 5.29 last season, which underlines his increased offensive impetus.
For all of their threat going forward, it does seem like Villa's success this season will hinge on the continued success of their malleable centre-backs.
After years of toying with the idea, Jurgen Klopp finally seems to be embracing the potential of Trent Alexander-Arnold, not the defender, mind you, but the midfielder.
The German did not think it was worth sticking with in the past, but has seemingly changed his mind now, and the Reds are all the better for it.
Inverted fullbacks isn't exactly a brand-new concept, but the way that Klopp is using Trent as a midfielder is intriguing.
Liverpool signed Alexis Mac Allister and Dominik Szoboszlai this summer and bought Wataru Endo as a Jordan Henderson replacement at the last minute.
None of these players are perfectly suited to the role of a deep-lying playmaker. This is where Alexander-Arnold has factored in for Liverpool.
Whereas before you would see him pinging crosses to the back post, Alexander-Arnold is now helping Liverpool progress the ball from central areas.
A quick look at some metrics paints a picture of how things have changed for the 25-year-old:
He's looking sharper this season than he has in a while, already beating his goals tally of two from last season, he's likely to finish the season with a lot more.
This change in role for Alexander-Arnold has come with its own compromises, players like Mohamed Salah are having to hold the width of the pitch, whilst Alexander-Arnold drifts into midfield to play as the six.
It may not quite be the perfect system yet, but Liverpool are enjoying the merits of Alexander-Arnold the midfielder, and he's looked better than ever in a red shirt.
Jarrod Bowen was instrumental for West Ham's historic Europa Conference League success last season, scoring five and assisting two goals as the Hammers lifted a maiden European trophy.
After 13 goals scored in all competitions last season, Bowen is kicking on this season in a big way, having scored 10 in the Premier League already.
He's doing so in a new role this season, playing up front as the number nine for Moyes in a new-look front three alongside summer signing Mohammed Kudus and Lucas Paqueta.
Bowen's personal numbers have been impressive undoubtedly, but what about his impact on the Hammers as a whole? The underlying shooting numbers reveal all.
Last season, West Ham ranked bottom for percentage of shots on target with just 28% overall from 466 shots attempted. This season, that figure has risen to 35%, a hugely impressive boost of 7% which has been possible due to Moyes moving Bowen closer to goal instead of having him cut inside off the right.
In fact, of West Ham's 69 shots on target in the league, Bowen accounts for a staggering 22, the next best in the squad is James Ward-Prowse with just nine.
The Hammers look well set for a deep run in Europe once again and with Bowen firing on all cylinders, it looks like Moyes-ball will go far this year.
We are committed in our support of safer gambling. Recommended bets are advised to over-18s and we strongly encourage readers to wager only what they can afford to lose.
If you are concerned about your gambling, please call the National Gambling Helpline / GamCare on 0808 8020 133.
Further support and information can be found at begambleaware.org and gamblingtherapy.org