Coach on the spot: Kansas City

Posted by ESPN.com's Bill Williamson

Chiefs coach on the spot: Defensive line coach Tim Krumrie.

The Chiefs need improved play on the defensive line. Kansas City set an NFL record for fewest sacks in a season, with 10 in 2008. If the Chiefs, who have won a total of six games in the past two years, are going to improve in the first year of the Scott Pioli-Todd Haley regime, the defensive line has to get better.

Krumrie is one of the few holdovers from the Herm Edwards era. He has to get more production from his unit as it moves to a 3-4 defense.

The only major addition is Tyson Jackson, who was the No. 3 overall pick in the April draft. Jackson is considered a strong run stopper but not a strong pass rusher. Krumrie had to meld together Jackson with Glenn Dorsey, Tamba Hali (when he's not playing linebacker), Tank Tyler and Turk McBride to make a strong line rotation.

If not, the Chiefs' defense will be a sieve once again.