‘Among Preston’s strengths is his smarts —- and a thirst to get better. “Duke has done a nice job since Chris went down, and obviously before that too in terms of preparing himself,” Bills coach Dick Jauron said. “He’s very young; he’s a smart player. He’s a guy that works awfully hard at it. “Now he’s got a chance, and as we all know in our business, when somebody goes down, it is an opportunity for someone else. He’s grabbed that thing and he’s played pretty consistently the last two weeks.”’