CHICAGO — The Nets, more than any team in the NBA, desperately need a star. And that’s exactly what Brooklyn target Darius Acuff Jr. vows he’ll be. The talent-starved Nets have lacked a face of the franchise since the Big 3 broke up, and falling out of the top three in the lottery hurt their chances of finding one. But Acuff — who has already met with the Nets — is confident he can be that one. Darius Acuff Jr. looks on during the 2026 NBA Draft Combine on May 12, 2026 at Wintrust Arena in Chicago, Illinois. NBAE via Getty Images After putting in one of the best freshman guard campaigns in college basketball history, Acuff has excelled at this week’s draft combine. Asked what role he envisions for himself at the next level, the self-assured 19-year-old wasn’t shy. “Definitely a superstar point guard for sure,” Acuff said. “Bring a lot of excitement to any city I go to, and just bring a lot of excitement straight from Day 1.” And just how does the Arkansas freshman define a superstar point guard?…