For 13 seasons, Brian Jennings had been Mr. Automatic.Through bad times and good, the 49ers' long snapper had established a reputation for excellence. On field goals and punts, No. 86 always put the ball exactly where it needed to be. Twice, Jennings was selected to play in the Pro Bowl for his expertise.Over 208 consecutive games played for the 49ers since he signed in 2000, Jennings had no bad snaps.But beginning this Sunday when the 49ers host the Green Bay Packers at Candlestick Park in the 2013 season opener, Kevin McDermott will be the man snapping the football for Andy Lee punts and Phil Dawson field goals.Will the 49ers regret their decision?Even 49ers head coach Jim Harbaugh said Jennings, 36, has "more football in him" and "he's definitely an NFL, top-level talent."Yet the Niners decided to go with McDermott, 23, an undrafted free agent from UCLA because of his strong performance this summer, his age – and, no doubt, his salary. McDermott is due $405,000 in 2013, while Jennings was to be paid $940,000.As Mike Sando, ESPN.com's NFC West blogger noted, "At a certain point, that type of savings was going to trump whatever advantages Jennings provided from a skill...