He's clearly alluding to Fultz.
Instead of worrying about Fultz he needs to worry about Jayson Tatum getting drafted over him. I think the perceived gap between Josh Jackson and Jayson Tatum is non-existent honestly. For some reason people are under-valuing Tatum when compared to Jackson, when the film breakdown, stats and measurements don't show a gap at all.
Fultz is a better prospect than both though, but both Jackson and Tatum have an all-star ceiling like Fultz. I think all three can defend their positions, unlike Lonzo Ball who I think will initially struggle defending quick PGs but has the size and BB IQ to improve later on in his career especially if he's in the right system.