Expanding on an earlier post, this one ranks NFL players by most sacks per pass play through Week 13.
The San Francisco 49ers' Aldon Smith ranks fourth on the list. The St. Louis Rams' Chris Long is 10th. The Arizona Cardinals' Sam Acho ranks 19th. Ex-Seattle Seahawk Lawrence Jackson is 14th. Ex-Ram Adam Carriker ranks 21st.
Smith is keeping impressive company. The next step for him, likely next season, will be to maintain his pass-rush production as an every-down player, when he'll also have to hold up against the run more frequently. So far, so good.
Sacks are not the only measure of a player's performance, of course. The best pass-rushers tend to collect a lot of them, however.