I was at the game and saw no more than 3 formations having 3 WRs. Why was D. Williams on the sideline for most of the game?

I am so sick of the way Billick calls games. And please save the standard response of "but we won the game right?". Billick stinks in the redzone and we still run one of the most vanilla offenses in the league.

He took zero shots down field vs AZ......ZERO.