The first few days of the NBA's 2015 free agency period have proceeded at a breakneck pace, with several teams already having emerged as the biggest winners and losers of the offseason. However, while the San Antonio Spurs' acquisitions of LaMarcus Aldridge and David West and the minor splashes made by the Los Angeles Lakers and New York Knicks will surely continue to stand out months from now, there are several notable players left on the market to set contenders, playoff squads, and lottery participants up for 2015-16.

Here are 13 of the most notable remaining free agents, all of whom could make impacts next season.

LeBron and the LeBron-Adjacent

LeBron James: Yes, the best player in the world is technically a free agent after having opted out of his contract in late June. While no one really expects him to leave the Cavaliers, the mere technical possibility has allowed James to exert a great deal of pressure on the franchise this offseason, and they have responded with several extensions that figure to add up to one of the heftiest luxury tax bills in league history. It's just one of the ways in which LeBron has taken on an unprecedented level of control for an active NBA player. It wouldn't be inaccurate to say he's one of Cleveland's lead decision-makers, even when he's technically not under contract.

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No matter long it takes, James will eventually sign with the Cavaliers on a max-level contract. The biggest question is how many seasons he wants, because it will define whether this same roster-reloading process plays out again and how soon he is able to cash in on the higher salary cap. The smart bet is on a very short deal, perhaps one that allows LeBron to opt out as early as next summer.

Tristan Thompson: It could be that the completion of Thompson's new contract is the only thing holding up the official announcement of LeBron's return. While ESPN.com's Marc Stein and Brian Windhorst reported on July 1 that Thompson was set to rejoin the Cavs on a five-year, $80-million deal, negotiations hit an impasse soon after and have yet to been resolved. The offensive-rebounding machine is a restricted free agent and still very likely to come back to Cleveland at something approaching those numbers. Thompson and LeBron share an agent, Rich Paul, and it is almost certain that the franchise will not do anything to upset that relationship.

J.R. Smith: It appears that J.R. could be the odd Cav out. While Cleveland moved quickly to re-sign various role players to lucrative extensions, the inconsistent Smith, who opted out of his contract at the end of June, has not been a subject of many rumors and reports and does not seem to be a priority for the franchise. For all his talent and somewhat regular explosive shooting performances, Smith has never been a dependable player and may not be worth the trouble for a franchise that can add outside shooting via more stable veterans like Monday addition Mo Williams. An NBA Finals in which J.R.'s most valuable contribution involved riding a PhunkeeDuck did little to help his image. Then again, perhaps the Cavs are just assessing other options, such as Joe Johnson, before returning to Smith.

If the Cavs find additional shooting elsewhere, J.R. is most likely to settle for a short-term deal that allows him to prove his value on a playoff squad in need of extra scoring punch. Smith did himself few favors in the finals, but his performances in the conference semifinals and conference finals proved that he can help good teams. We just don't know which franchise will decide that the potential reward outweighs the risk.

Stuck in Restricted Free Agent Purgatory

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