Kyle Shanahan on critical all-out blitz: I should have called a timeout

One of the most fascinating moments of the season to date came on Monday night, when the 49ers called a seven-man, cover-zero blitz late in the first half against the Vikings. Although the play nearly resulted in an interception by cornerback Charvarius Ward, Vikings receiver Jordan Addison took the ball away from Ward and scored a 60-yard touchdown.It was a given from the get-go that the blitz should not have been called. There was little to be gained, and much to be lost in that moment. Chris Simms and I spent some time talking about it during Tuesday's PFT Live.But the situation raised other questions, including the line between delegation and abdication by a head coach. Coaches who specialize in offense all too often throw the keys to the defense to the coordinator, fully and completing entrusting all calls to the defensive coach.Others pushed back on our question of whether, in a case like this, the head coach has a kill switch that can prevent the defensive coordinator from moving forward with a bad play.On Wednesday, 49ers coach Kyle Shanahan pinned the public blame on defensive coordinator Steve Wilks, and took none of it for himself. On Thursday, Wilks admitted it was a...