Originally Posted by The Pencil Neck
But he also spent a few years as the OC under Seifert in San Francisco.
Yeah, but Seifert was a defensive coach. Shanahan inherited the WCO playbook, but he brought his own influence to the Niners, as well. The Niners lead the NFL in scoring and were in the top 6 in rushing yards during his 3 seasons as OC.