The premise that carried the Lakers for a season and a half — two ball-dominant creators sharing the floor — is gone. LeBron James signed with the Philadelphia 76ers, ending an eight-year run in Los Angeles. What’s left is a roster built entirely around one engine, and that design only functions if the players next to Luka Dončić can shoot defenses out of the paint.
The logic is simple. Walker Kessler is the fulcrum: the 7-foot-2 center, cleared this summer after the torn labrum that ended his 2025-26 season in November, gives Dončić a rolling, rim-protecting big — a vertical lob threat who doesn’t need touches to matter, which lets Dončić and Reaves run the starting halfcourt without a third mouth to feed. Collin Sexton, signed in July, brings his usage off the bench. A non-shooting five who dives to the rim only helps if the perimeter around him is loaded. That puts the season on the wings.
Quentin Grimes: the spacing has to be real, not theoretical
Grimes is the new starting wing, and the entire structure assumes he punishes help defense. He arrived on a four-year deal as a rangy defender who can guard on the perimeter and space the floor off the team’s two primary creators.
That’s the job description. The risk is that “can space” and “does space at volume” are different things. If Grimes is a threat opponents respect, the Kessler roll and the Dončić drive open up; if he’s a guy defenses sag off, the paint clogs and the whole read-and-react engine stalls. His shooting is the single most load-bearing swing skill on the roster.
Sandro Mamukelashvili: the shooting four the plan is counting on
The projected starting power forward exists specifically to stretch the floor next to a non-shooting center. Mamukelashvili, added on a four-year deal, is a skilled, shooting-capable big who can play the 4 next to Kessler and slide up to backup center in smaller looks.
That’s the optimistic framing. The Lakers themselves seem unsure it holds up defensively — the alternative at the spot is a defense-first look. The biggest question is at power forward, where JJ Redick must decide between shooting and defensive versatility: Mamukelashvili offers the offense, Jake LaRavia the more balanced fit, and Matisse Thybulle or Ziaire Williams the defense if LaRavia can’t provide it. Each of those alternatives is a lower-volume shooter than Mamukelashvili — a cost in the exact thing Dončić needs most.
Jake LaRavia: the fallback that quietly decides the ceiling
LaRavia is framed as the compromise, but he may be the most important name in the rotation precisely because he’s the middle option. He offers the more balanced fit than Mamukelashvili, with Thybulle as the defense-only fallback behind him.
If LaRavia shoots and defends passably, Redick gets to keep spacing on the floor without surrendering the perimeter. If he can’t, the Lakers are forced into a choice between a leaky defensive frontcourt and a spacing-starved one — and either way, Dončić’s driving lanes shrink.
The Bottom Line
The overlooked truth here is that Grimes matters more than the power forward debate everyone is having. For the first time in the Dončić era, the roster is built around him rather than stapled to an aging co-star — Kessler gives him the center he wanted, and Grimes and Reaves give him shooting and secondary creation.
Reaves is a known quantity as a secondary creator, and the power forward spot has three fallback answers. The wing does not. If Grimes shoots the way his contract implies, this offense hums; if he doesn’t, no amount of Mamukelashvili or LaRavia tinkering saves the spacing math. The Lakers didn’t just move on from LeBron — they bet the season on the exact skill they can least afford to guess wrong about.
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