When Carmelo Anthony and Paul George joined Russell Westbrook in Oklahoma City this offseason, it looked like three superstars coming together to form a new superteam, an offensive juggernaut. But the Thunder are a dismal 17th in offensive rating.

One culprit: Anthony tends to play a lot of isolation basketball, preferring to have the ball in his hands to try to create scoring opportunities for himself off the dribble. This creates a lot of inefficient offense for OKC.

It's clear Thunder coach Billy Donovan recognizes the problem and has asked Melo to adjust to a new role in which he handles the ball less and works off the ball to get his shots. On Friday, Melo set season highs with seven made 3s on 12 attempts, mostly in catch-and-shoot situations.

"I think for me it's just a matter of accepting that role. That's all it is," Anthony said Friday night. "Realizing that's what it's going to be, these are the type of shots I'm going to get, this is the type of offense we're going to be running and accepting that, and working on that role. That's something that I've kind of been doing over the past week, is allowing myself to accept that role and do whatever I gotta do to make this team win."

The sooner that Iso Melo disappears for good and Anthony takes full advantage of playing with stars, the sooner the Thunder can reach their potential.

There are three key reasons why Anthony's iso game is a problem:

1. He doesn't create team offense

It has been demonstrated that volume-scoring wings like Anthony have a larger impact if they are also strong at creating team offense with the pass. Anthony's 17.4 assist percentage in his past four seasons with the Knicks was significantly behind that of Olympic teammates LeBron James (36.9 percent), Kevin Durant (24.6 percent) and Kobe Bryant (26.7 percent over his last four seasons). This season Anthony is down to a 7.8 assist percentage.

2. He creates primarily midrange jumpers for himself

The midrange jumper is the least efficient shot in basketball -- it goes in less often and draws fewer free throws than shots near the rim, but it's still worth only two points. This is the foundation for the Houston Rockets' philosophy of shooting either a 3-pointer or at the rim on almost every possession, and the same logic has permeated much of the NBA. Offenses built on iso play generate a lot of midrange looks off the dribble.

This is why Donovan has talked about reducing the number of "nonpaint 2s" the Thunder shoot, as reported by ESPN's Royce Young.

Anthony is one of the best iso scorers of his generation, but that doesn't solve the efficiency problem. According to Basketball-Reference, 47.1 percent of Anthony's field goal attempts this season are midrange 2s, barely down from his 49.5 with the Knicks last season.

By comparison, Durant took only 33.3 percent of his shots and James 23.4 percent of his shots in that range from 2014-15 thru 2016-17.

3. He doesn't imbalance the defense by involving multiple defenders

Some scorers get multiple defenders moving with post-up play that leads to double-teams or by running a lot of pick-and-roll plays. Others do so by driving to the basket. But Anthony engages in very few of these actions.

Anthony generates a lot of shots for himself, putting up points and maintaining "star" status. But at the team level, he's not generating star-level impact.

In Oklahoma City, that's especially damaging, because every possession Anthony uses is one that Westbrook, OKC's truly elite offensive engine, can't use to generate better results for the team.

Over the past three seasons, according to ESPN's real plus-minus (RPM) stat, Westbrook has been second in the NBA in each season in offensive impact. RPM estimates how a player impacts the team's scoring margin while he's on the court via a combination of plus-minus and box score stats.

This measure is broken down to offensive RPM (ORPM) and defensive RPM (DRPM). This is how the Thunder's three star players measured out in ORPM over the past two seasons, leading into this one:

Offensive real plus-minus Player Season ORPM Overall rank Russell Westbrook 2015-16 7.25 2 Russell Westbrook 2016-17 6.74 2 Paul George 2015-16 3.35 11 Paul George 2016-17 2.67 29 Carmelo Anthony 2015-16 2.97 17 Carmelo Anthony 2016-17 1.87 42

Westbrook is on a different level from Anthony and George as an offensive force. Anthony, in particular, has not produced the level of positive impact that one might expect, even though offense is the primary way that he affects games.

Look at the shots Anthony is taking, according to Second Spectrum: 22.8 percent are pull-up jumpers, and 15.5 percent are "shake and raise," which means that a total of 38.3 percent of his shots are jumpers off the dribble. The pull-up jumper is the most frequent type of shot that Anthony takes, and he has just a 36.8 percent effective field goal percentage (eFG, which factors in the true value of 3s compared to 2s) on those shots.

Given that Anthony is playing with one of the greatest offensive engines in the game, there is no need for him to create so much for himself off the dribble. In fact, Anthony is an excellent catch-and-shoot player, either spotting up or catching the ball on the move. According to Second Spectrum, here are his numbers in those situations from both last season and this one:

Anthony on catch-and-shoots Play type Season eFG Attempts Catch-and-shoot (standing) 2016-17 62.2 249 Catch-and-shoot (moving) 2016-17 56.8 103 Catch-and-shoot (standing) 2017-18 53.4 88 Catch-and-shoot (moving) 2017-18 66.7 51

So, even this season when his iso jumpers aren't falling, Anthony is still knocking down his catch-and-shoot opportunities at a high clip, like he does here: