Niagara removed the interim tag and named Greg Paulus as the Purple Eagles' head coach Thursday.
The promotion comes two weeks after coach Patrick Beilein abruptly resigned before coaching his first game, citing "personal reasons" for his Oct. 24 decision.
This is the first head coaching position for Paulus, 33, a former Duke point guard (2005-09) who has been an assistant coach at George Washington, Louisville, Ohio State and Navy.
"Since his first day on campus, Greg has exhibited a high level of professionalism and dedication to our student-athletes," athletic director Simon Gray said. "His leadership abilities have only strengthened in the past weeks and he has impressed throughout our evaluation of him as our next head coach. I have had the privilege of talking with his extensive network and appreciate the praise for his character, work ethic, and knowledge of the game. Greg has proven to be an effective recruiter and positive presence on campus and in the community."
Niagara opens the 2019-20 season on Friday night against Drexel in Philadelphia.
"It is an honor and a privilege to be named the men's basketball head coach at Niagara University," Paulus said. "This is a special place and is a program rich in tradition. We look forward to working extremely hard to make the Niagara community proud."
Beilein, 36, the son of Cleveland Cavaliers coach John Beilein, was hired by Niagara in March after four seasons at Division II Le Moyne in Syracuse, N.Y.
"Personal reasons I can no longer take lightly have led me to step away from my dream job," Beilein said in a statement announcing his resignation. "Going forward, I must give singular focus to dealing with these issues, so that I can become the man that I strive to be. In time, it is my hope that I can be more open about my ongoing circumstances, but in the meantime, I thank you all for respecting my family's need for privacy and for all of your continued support."
In March, Niagara fired coach Chris Casey after six seasons. The Purple Eagles finished 13-19 last season, last in the Metro Atlantic Athletic Conference.