Niners part ways with defensive coordinator Steve Wilks after one season with team

When asked about the past performance and future employment of defensive coordinator Steve Wilks with the San Francisco 49ers on Tuesday, head coach Kyle Shanahan gave a blanket statement about his coaching staff.

"I haven't talked to anybody yet," he said. "So yeah, I expect all our coaches to be back."

On Wednesday, the 49ers fired Wilks, who finished his first year with the team in that role.

The 49ers lost Super Bowl LVIII to the Kansas City Chiefs, 25-22, in a game where the defense played well for most of the game but folded late. The Chiefs scored only one touchdown in regulation, and it came off a muffed punt deep in San Francisco territory. It was even more impressive considering Dre Greenlaw suffered a torn Achilles midgame and Arik Armstead and Javon Hargrave were playing through injuries in the Super Bowl.

But on the final possession of regulation and the first series of overtime, the 49ers' defense couldn't stop Patrick Mahomes from doing enough -- a few times with his legs -- to lead them to victory late.

Nick Bosa told reporters he thought the 49ers "could've been more prepared" for Mahomes as a runner in the read-option game, as the QB had two key conversions late.

"You kind of have to anticipate Mahomes wanting to have the ball in his hands," Bosa said. "We played plenty of read-option teams, so we have the answers for it. But it's tough when you play a team like that that can beat you in all kinds of different ways. It ended up being very big few moments where they did pull it out. We'll learn from it."

On one key possession late in overtime, Shanahan called a timeout with the Chiefs facing second-and-6 from the San Francisco 37-yard line. It appeared as if Shanahan didn't like the all-out pressure look Wilks