CLEVELAND, Ohio -- The addition of Kyle Korver is a coup for the Cleveland Cavaliers, another brilliant move by General Manager David Griffin in his endless quest for shooters.

There's no downside to adding a career 42.9 percent 3-point bomber who possesses the versatility and work ethic the Cavs covet. It adds depth to an unfinished roster.

But it doesn't address the Cavaliers' primary need. That's backup point guard, the glaring hole since the beginning of training camp that becomes harder to disregard as the season closes in on the halfway point.

A savant moving without the ball, Korver uses screens and creates space to get his shot off the way Ray Allen did for years and the way Klay Thompson and Stephen Curry do for the Warriors now. It takes a toll on an opposing defense and can lead to numerous breakdowns with just a minor slip-up in communication being the difference.

One of the league's premier 3-point shooters, Korver will no longer be a defensive focal point, which will lead to more open looks playing alongside LeBron James, Kyrie Irving and Kevin Love. It's the kind of space Channing Frye, J.R. Smith, Richard Jefferson, James Jones and countless others rave about.

But that's a common theme with the roster. Loaded with shooters. Lacking creators. James and Irving do most of the heavy lifting, forcing the defense into a tough decision, with a drive-and-kick game that leads to plenty of headaches.

Aside from those two -- and Kevin Love from time to time -- the Cavs don't have anyone else to step into the playmaker role.

That's where the Cavaliers miss Matthew Dellavedova the most. When given the ball last year, Dellavedova helped run the second unit, creating shots for teammates in pick-and-roll situations. He finished second on the team in total assists.

Before Delly slid into the primary backup role, Mo Williams served as a facilitator during the first few months Irving was sidelined with a knee injury.

That's been a missing ingredient. James and Irving have combined for 437 of the team's 752 total assists. That's 58 percent. The other 12 players on the roster have 315 -- or 122 fewer than Cleveland's All-Star duo.

Last season, James and Irving accounted for 41 percent of the team's assists while the rest of the roster tallied 59 percent. It's been reversed this year without the third creator.

Lue has tried a variety of players. He's still searching for someone to take some of that burden. But when guys start putting the ball on the floor, looking for their own shots or opportunities for others, the offense has issues.

While Kay Felder has started to emerge since a one-game trip to the D-League, even James understands the risk of putting that responsibility on a rookie.

"Kay's in the process of learning on the fly," James said the other night. "He's a rookie and is going to have his mistakes and things of that nature. It's tough on him because we're a franchise trying to win a championship. He has to have a fast-track mind. But we don't have a backup point guard."

Other contenders do. Toronto has Cory Joseph. Charlotte uses Ramon Sessions. Golden State has Shaun Livingston. Houston has Patrick Beverley. The Spurs have Patty Mills.

James' versatility can be an easy answer for Cleveland. The best solution is an outside addition via free agency or trade.

There's no reason to doubt Griffin, who has proven to be one of the league's best executives. And he has plenty of time to work more trade magic. Korver was a great start. But there's more to be done.

The Cavs are already the best team in the Eastern Conference -- and perhaps in the NBA. But it's hard to consider the roster complete, even after the shrewd Korver-Dunleavy swap, until the Cavs find at least one more playmaker.

Even the champs need some fine-tuning from time to time.