Fassel will remain the head coach at New Mexico Highlands, a Division II program that went 0-10 last season in his first year.
Jim Fassel, the former New York Giants coach, was added as a senior consultant last week.
"John's a good young man and he's got some things started at New Mexico Highlands," Billick said Monday afternoon. "I think he's firm on not coming. They've made some commitments to him and he felt like he needed to live up to that obligation."
Billick said he will continue to search for an offensive assistant and has a few names in mind, but said he won't necessarily fill that spot.
Aaron Wilson writes for the Carrol County Times.
Younger Fassel won't join Ravens
Ravens Insider Top Stories
Jon Ledyard's All-22 Review: Ravens-SteelersAnalysis of coach's tape updates play of Villanueva, Foster, finds surprise on the DL, deconstructs the 'Immaculate Extension,' and much more.
Steel City Insider12/28/2016
Dolphins A No-Show Against RavensHad Sunday's game been the first round of the playoffs for the Miami Dolphins, they would have been sent home by the Baltimore Ravens.
Week 13: Snaps Impact & Target AnalysisLearn more about how many snaps and targets were had by some key Fantasy players as we push toward the last week of the Fantasy regular season.
4 teams have more than $20M in carryoverThe NFL Players Association released the amount of salary-cap dollars each team can carry over into their 2017 salary cap, with four teams having more than $20 million and five…
Scout NFL NetworkYesterday at 10:01 AM