By Alek Arend The honeymoon era is over for Nathaniel Hackett in Denver. The rookie head coach made a costly decision in his debut Monday night that wound up costing the Broncos the game vs. the Seahawks of Seattle. Hackett didn’t let his new franchise quarterback, Russell Wilson, go out and try to win the game late in the fourth quarter. Instead, he elected to let his field goal kicker try and make a 63-yard attempt on fourth and five with just seconds remaining. It was a horrendous decision. Hackett admits he regrets the call and that he should have let Wilson go out and try to win the game….