UO recruits the same players as 'Zona & UCLA. All three are recruiting Marvin Bagley hard. UNC, South Carolina, and Florida are all recruiting Zion Williamson. Lack of success isn't the same as lack of effort.
Sadly K's time is short. Absent an NBA draft eligibility change or demands from Duke leadership to avoid OADs, K's not changing that element of his recruiting strategy.
Not a fan of OADs, but probably just as productive to hope K plays a ten man rotation in his final seasons as to hope he actively avoids recruiting the best possible talent (subject to Duke admissions constraints).