While Kevin Durant and Kyrie Irving have been the big — OK, make that only — storylines around the Nets so far this offseason, they’re not the only questions the team needs to answer.

From general manager Sean Marks to coach Steve Nash to the Nets themselves, there are a host of things to sort out before they tip off the regular season on Oct. 19 vs. New Orleans.

The Nets’ original Big 3 of Durant, Irving and James Harden ended up logging 16 games together. So far, that’s more than the new Big 3, which still hasn’t taken the court together. They traded Harden for Simmons in February, but Simmons is still has not made his Nets debut after back surgery.

Simmons, who hasn’t played since June 20, 2021, with Philadelphia, is set to finally suit up for the Nets on opening night. The last time he played, he shot just 33.3 percent from the free-throw line and didn’t take a single 3-pointer in a second-round playoff exit for the Sixers.

Sources close to Simmons told The Post last month he’ll be ready for camp, and ESPN reported this same this week. He has been in Los Angeles working out with trainer Chris Johnson. When Johnson was asked if Simmons is working on his 3-point shooting, he replied “Absolutely.”

Despite a relaxing Dominican Republic vacation spent horse riding — and a new two-year, $20 million contract — the summer hasn’t been all fun and games for Nic Claxton. After he started 19 games last season, the center job finally appears to be his. But considering his 1-for-11 horror show from the free-throw line in the Nets’ loss to the Celtics in Game 4 of their first-round playoff defeat, improving that foul shooting has been offseason priority No. 1.

“Just my overall game. Of course, free throws,” said Claxton, who focused on his foul shooting this summer with Nets assistant Ryan Forehan-Kelly and Texas-based trainer Tim Martin. “Working on my shot, getting stronger, and then just continuing to build off these last few years.”

Claxton missed his first 10 free throws — six in the first quarter — of that Game 4 loss before finally sinking his final attempt in the fourth quarter. It obscured the fact he’d improved his foul shooting last season from 48.4 percent the year before to 58.1 — including 60.9 as a starter, a job he seems set to inherit.

The Nets let their $6.27 million trade exception (from the DeAndre Jordan deal) expire Friday and made no moves this past week, just like most of the NBA. But unlike most of the league, they have huge holes. The Nets have a half-dozen openings on their 20-man camp roster, tied for the most in the NBA.

The Nets have 12 players on guaranteed standard deals, one (Edmond Sumner) on a partially guaranteed contract and another on a two-way deal (undrafted rookie Alondes Williams). That leaves them with three Exhibit 10 spots, a two-way and two standard deals still open.

Late last week, there were only 16 openings for standard deals still open in the whole league, and the Nets had two of them. David Duke Jr. is eyeing one after declining the team’s two-way offer. The restricted free agent is still waiting to see if Marks will up his offer to a standard deal, or if he will have to settle or seek one elsewhere.

Durant demanded the Nets fire Nash if they don’t meet his trade request. And while that seems unlikely — team owner Joe Tsai backed Nash and Marks — there are still questions about the rest of the staff. Namely: Who is going to be the Nets’ defensive coordinator?

The Nets lost overly qualified assistant coach Ime Udoka, who left to be head coach in Boston last offseason. Nash’s former employee turned the Celtics into the league’s best defense and swept the Nets en route to an NBA Finals run. This summer the Nets have lost assistant Jordan Ott (granted, more of an offensive mind, but a hard worker involved in every aspect of the team) to the Lakers.

Somebody on this staff has to step up and help tighten up their sieve-like defense. Jacque Vaughn is the most likely, but he has had mixed results in that role so far.

Play-by-play man Michael Grady is leaving the YES Network and the Nets to become the voice of the Minnesota Timberwolves on Bally Sports North. The news was first reported by The Athletic.

“I love y’all,” Grady told the Nets and their fans on Twitter, preceded and followed by heart emojis.

“I love y’all,” Grady had told the Nets and their fans on Twitter, preceded and followed by heart emojis.

“I love ya!” Tsai tweeted back. “All the best in Minnesota. We will miss you!” But who will end up filling the Emmy winner’s sizeable shoes?