In any event , Lewis oversaw the gradual maturation of a devastating unit .
It led to Lewis being the only Lewis retained when head coach Ted Marchibroda was fired and Billick was hired in 1998 .
In any event , Lewis oversaw the gradual maturation of a devastating unit , and it led to him being the only assistant retained when head coach Ted Marchibroda was fired and Billick was hired in 1998 .