Jim Harbaugh and Colin Kaepernick are both well versed in the 'injuries open up opportunities' narrative.

Alex Smith’s concussion on Nov. 11 paved the way for Harbaugh to hand the starting quarterback job to Kaepernick, who emerged as a breakout NFL star as he led the 49ers to the Super Bowl.

While Michael Crabtree will be sidelined until November at the earliest as he recovers from surgery to repair a torn Achilles tendon, both Harbaugh and Kaepernick displayed more confidence than concern Wednesday after practice.

“We have a lot of talent out here,” Kaepernick said, echoing his head coach’s sentiments. “We have a lot of great players. It’s just who’s going to step up and fill that role now.”

Minutes after Kaepernick and Harbaugh dropped the “step up” line, Patrick Willis followed suit.

“It’s an opportunity for someone else to step up,” he said.

In Kaepernick’s 10 starts between the regular season and playoffs, he targeted Crabtree 92 times, compared to just 39 passes thrown to Vernon Davis and Randy Moss.

When asked why he looked Crabtree’s way so often, Kaepernick took a page from his head coach’s media playbook and kept it simple.

“He got open. That’s what you want from a receiver.”