He is the interim coach , filling in after the Dec. 12 firing of Jeff Fisher while continuing to fulfill his duties as the Los Angeles Rams ' special teams coordinator .
LOS ANGELES -- John Fassel knows this is all very temporary .
John Fassel is the interim coach , filling in after the Dec. 12 firing of Jeff Fisher while continuing to fulfill John Fassel 's duties as the Los Angeles Rams ' special teams coordinator .
LOS ANGELES -- John Fassel knows this is all very temporary .