Kurtenbach: The 49ers returned to basics to beat the Seahawks. They need to stick with them

Kyle Shanahan didn’t see Issac Guerendo’s slide.

The 49ers’ head coach was too busy throwing his hands in the air, signaling touchdown, and pumping his fist, to turn around and see his rookie running back — tasked with running out the clock late in the 49ers’ game against the Seahawks — slide at the 5-yard line, up five points, after 76 yards of running with 1:24 to play.

It was a play worth celebrating, even if Shanahan’s touchdown signal proved a bit premature. Two plays later...