This is starting to feel like Tom Landry's final days as an NFL coach, just before he was ingloriously put out to pasture. Or maybe it will be more akin to Don Shula, who trudged into a retirement that seemed forced on him.Athletes rarely know when it's time to go, and that unwillingne s to face reality certainly applies to coaches, too.Which brings us to Bill Belichick.He's stubborn and ornery...