AFC West Q&A: What's your team's biggest need?

Today's question: What need did your team fail to fill in free agency or the draft that needs to be addressed before the season?

Adam Teicher, Kansas City Chiefs: The Chiefs might regret making Jeremy Maclin their only major acquisition at wide receiver. Maclin is a nice start, but otherwise the Chiefs are showing an extraordinary amount of faith in former low-round draft picks or players who have been discarded by other teams. Albert Wilson, an undrafted free agent last year, is first in line to become the other starting receiver. Wilson is fast, runs solid routes and is reliable catching the ball, but he's only 5-foot-9 and won't provide many headaches to opposing defensive coordinators. Former fourth-round draft pick De'Anthony Thomas had little impact on offense last season. Among the others competing for playing time are Da'Rick Rogers, a talented but troubled player who was recently released by two different teams, and veteran Jason Avant, who was cut last year by the Carolina Panthers. Third-round pick Chris Conley might eventually become a competent No. 2 receiver, but it's a bit much to expect that from him right away.

Bill Williamson, Oakland Raiders: It's pass-rusher. The Raiders had just 22 sacks last season, which was tied for the second-fewest in the NFL. Oakland's defensive ends had seven sacks in 2014, which was the fewest in the NFL. Despite having nearly $70 million in salary-cap room, the Raiders did not add an established pass-rusher in free agency. In the second round of the draft, the Raiders did take Florida State defensive end Mario Edwards. He had just eight career sacks in college and is considered more of a run-stopper than a pass-rusher. The Raiders are hoping outside linebacker Khalil Mack, who had four sacks as a rookie last year, will develop into a premier pass-rusher. He has to. No other sure things were brought to Oakland this offseason.

Eric D. Williams, San Diego Chargers: The Chargers have to generate more pass rush. San Diego finished with just 26 sacks in 2014, third-fewest in the league. The last time San Diego finished with a double-digit sack guy was Antwan Barnes with 11 sacks in 2011. With Dwight Freeney and Jarret Johnson gone, young players like Melvin Ingram, Jeremiah Attaochu and Tourek Williams have to step up and fill the void.