John Elway allowed John Fox to move on because he understandably felt that Denver underperformed in the postseason under the coach. (Two one-and-dones and a Super Bowl embarrassment over three years doesn't leave the best taste in your mouth.) Denver has talent and a legendary quarterback -- albeit one in the twilight of his career. And therein lies the challenge: Kubiak, Elway's long-time friend, needs to win now -- but he also needs to strike a balance.