"There's going to be change every year in the NFL," Koetter said. "We've got some new guys at some new positions. We're moving some guys around.Don't Miss:Rare Ferrari sells for $52MGaudi cathedral's futureSiri struggles on Bay BridgeHardly Strictly Bluegrass guideHSB updatesRecalling 2003 recallFILE In this Dec. 19, 2011 file photo, San Francisco 49ers head coach Jim Harbaugh, center, talks with quarterback Alex Smith (11) during the second quarter of an NFL football game against the Pittsburgh Steelers in San Francisco. In the Bay Area, they're beginning to think about the possibility of Jim Harbaugh coaching former Indianapolis Colts quarterback Peyton Manning and believe it truly might happen.

Cornerback Tevin Mitchel remains sidelined for Arkansas after being hospitalized following a hit in the LouisianaMonroe game, and sophomore fullback Kody Walker is likely lost for the rest of the season with a broken leg. The Razorbacks donned the helmets for the