Upside talent with good length and impressive ball skills that could foreshadow more to come. Deciphering Polk's single season of production inside Mike Leach's pass-happy offense will take work. He's not a great separator underneath and is unlikely to scare anyone with his deep speed. It's easy to spot his high football IQ and impressive ball skills throughout the tape, but he needs additional play strength and razor-sharp route running to counteract his lack of explosiveness.