Oregon Coach Chip Kelly’s potential departure from the Ducks to take a National Football League coaching job hung heavily Thursday over some fans as they watched UO take on the Kansas State Wildcats in the Fiesta Bowl. A standing-room only crowd gathered at Splitz Bar and Grill on Diamond Lake Boulevard in Roseburg to watch the game. Longtime Ducks fan Colby Morse, 44, of Roseburg said he has enjoyed the Ducks’ success in the past few years and would understand if Kelly took a job in the NFL. “I think it’s inevitable. It comes with having a top-flight program,” Morse …