‘Tyler Thigpen, who signed a three-year contract last July, is currently the primary backup with Brad Smith available for wildcat plays and dire emergencies. Thigpen, 28, is a former seventh-round pick with just 12 NFL starts in five years. Also added to the mix was rookie Aaron Crop, a free agent from Richmond who wasn’t drafted. Crop was a transfer from USC and a "sleeper" type prospect in pre-draft reports.’