49ers vs. Chiefs: 5 things we learned from Niners’ first preseason game

KANSAS CITY, MO - AUGUST 11: Quarterback Brian Hoyer #2 of the San Francisco 49ers passes during the preseason game against the Kansas City Chiefs at Arrowhead Stadium on August 11, 2017 in Kansas City, Missouri. (Photo by Jamie Squire/Getty Images)
KANSAS CITY, MO - AUGUST 11: Quarterback Brian Hoyer #2 of the San Francisco 49ers passes during the preseason game against the Kansas City Chiefs at Arrowhead Stadium on August 11, 2017 in Kansas City, Missouri. (Photo by Jamie Squire/Getty Images) /
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KANSAS CITY, MO – AUGUST 11: Running back Spencer Ware #32 of the Kansas City Chiefs carries the ball into the endzone for a touchdown during the 1st quarter of the preseason game against the San Francisco 49ers at Arrowhead Stadium on August 11, 2017 in Kansas City, Missouri. (Photo by Jamie Squire/Getty Images)
KANSAS CITY, MO – AUGUST 11: Running back Spencer Ware #32 of the Kansas City Chiefs carries the ball into the endzone for a touchdown during the 1st quarter of the preseason game against the San Francisco 49ers at Arrowhead Stadium on August 11, 2017 in Kansas City, Missouri. (Photo by Jamie Squire/Getty Images) /

No. 4: 49ers Run Defense Is Vastly Improved

San Francisco 49ers
San Francisco 49ers /

San Francisco 49ers

A year ago, the 49ers boasted the worst defense in the NFL. And San Francisco’s 2,654 rushing yards allowed marked a historic low point for the franchise.

So it makes sense the Niners made huge strides to upgrade their front seven this offseason.

This was especially apparent up front against Kansas City’s running game. The Chiefs netted a mere 31 yards on the ground, averaging just 2.2 yards per carry. Quarterback Alex Smith was actually Kansas City’s leading rusher with 10 yards on one rushing attempt. That’s it.

While players like Solomon Thomas and DeForest Buckner have earned a lot of the attention along the defensive line, role players like Earl Mitchell and Quinton Dial were even more effective and consistent.

This shouldn’t be too much of a surprise. The Niners now have one of the deeper D-lines in the NFL, and competition for roster spots figures to be fierce here.

Still, it’s good to know San Francisco has addressed this issue by upgrading the personnel and simplifying the scheme under defensive coordinator Robert Saleh.