Calvin Hill on the 1 and the 49ers recovered, leading to Schreiber's third 1-yard touchdown run giving his team a commanding 28–13 lead. Shortly before the end of the third quarter, coach Tom Landry replaced Morton with Roger Staubach, but it didn't seem to help. On his first drive, Staubach lost a fumble while being tackled by Bob Hoskins. San Francisco was in prime position to put the game away with another score, but they couldn't get the ball into the end zone and Gossett missed a 32-yard field goal attempt, causing a huge reversal of momentum. Now with the ball, Hill ripped off a 48-yard gain on a draw play to set up Fritsch's 27-yard field goal, trimming the lead to 28–16. Later in the quarter, a poor punt from McCann gave Dallas the ball at the 49ers 45-yard line. Staubach then led the team to the end zone, completing two passes to fullback Walt Garrison for 16 yards and two more to Billy Parks, the second a 20-yard touchdown completion to cut the score to 28–23 with less than two minutes left. With time running out, Dallas had to attempt an onside kick. 49ers receiver Preston Riley briefly handled the ball, but couldn't hang on and it was recovered by Mel Renfro. On the first play after the recovery, Staubach gained 21 yards on a quarterback scramble. Then he connected for a 19-yard gain to Parks, who ran out of bounds at the San Francisco 10-yard line. On the next play, Staubach threw a 10-yard touchdown pass to receiver Ron Sellers, giving Dallas a 30–28 lead with just 52 seconds left. However, the 49ers were not quite out of the game. Needing only a field goal to win, Brodie completed three consecutive passes, but a 23-yard completion to Riley that would have put the 49ers in field goal range was eliminated by a holding penalty, and Brodie was intercepted by Waters on the next play. This game would mark the end of the four-year battle for the starting quarterback position on Dallas between Morton and Staubach. With his outstanding performance of 12/20 completions for 172 yards and 2 touchdowns, with no interceptions and 23 rushing yards in just over one quarter of play, Staubach became the Cowboys' permanent starter and would not relinquish the position until the end of his career after the 1979 season, while Morton was