Niumatalolo later confirmed the report:
Statement from Coach Niumatalolo: "After much prayer and pondering it has become crystal clear that USNA is a special place with special people and I love it here. Plus, I have unfinished business!"— Bill Wagner (@BWagner_CapGaz) January 14, 2018
Niumatalolo was reportedly offered the position and had been mulling it over the last couple days. He also turned down the BYU job in December 2015.
It is unclear where Arizona will go from here, but Cal offensive coordinator Beau Baldwin, Arizona defensive coordinator Marcel Yates, and UCLA offensive coordinator Jedd Fisch are thought to be in the running for the job.
Candidates like Kevin Sumlin and Mark Sanford Jr. appear to be possibilities as well.
Niumatalolo went 84-48 in 10 seasons at Navy, but there were some concerns about how his triple-option philosophy would translate to Power Five football.
UA star quarterback Khalil Tate had tweeted “I didn’t come to Arizona to run the triple-option” before deleting it.
Arizona will need to move swiftly to hire its next head coach, since National Signing Day is less than a month away.
Follow Ryan Kelapire on Twitter at @RKelapire