DETROIT – Tim Tebow spent most of this Thursday night – perhaps one of his fleeting few remaining as an NFL quarterback – standing near the 50-yard line of the New England Patriots sideline. When the Pats were on defense, he'd sometimes casually flip a ball around by himself. When they were on offense, he'd put his helmet on, ready to go in – whether at QB or any other position the coaching staff might request. "You just prepare yourself and be ready for whenever your number is called," Tebow said. Tebow's number was never called.