Lazor has previously served as the quarterbacks coach for the Washington Commanders, Seattle Seahawks, and Philadelphia Eagles.

On January 18, 2016, Lazor was named quarterback coach for the Cincinnati Bengals, replacing recently promoted Ken Zampese.

[2] On September 15, 2017, Lazor was named the Bengals offensive coordinator, taking the place of the recently fired Zampese.

[5] On April 2, 2021, head coach Matt Nagy announced during a press conference that he would resume calling plays in the 2021 season.

[6] During the post game press conference after the week 4 win at home against the Detroit Lions, head coach Matt Nagy announced that he allowed Bill Lazor to act as the play caller following a highly criticized 26–6 loss on the road against the Cleveland Browns in week 3,[7] In the same press conference, Nagy did not explicitly say that Lazor would continue calling plays alone going forward, rather Nagy continued to be vague regarding the future of the play calling.