Size-Strength-Mobility
This kid is really going to develop into a physical presence over time. He is tall, long and gangly, but with good body coordination and he is only going to add bulk and strength over time. From a measurables standpoint he looks like an underdeveloped Marcus Mariota. Is capable of being a difference maker as a runner either designated or improvised. Has very good initial quickness and overall foot speed for the position.
Mental-Makeup
We really like his ability to maintain field vision with people in his face or the pocket collapsing around almost to his detriment. He will get so locked on to a target that he has no regard for the rush, which is nice to see, but you'd also like to see him come off to another option quicker and with more pre-snap/post-snap recognition. He is very confident in his ability -- stands tall, throws with authority and will take off and run at any moment. Shows command of the scheme and shows flashes of being a rhythm passer that can divvy the ball to various options.
Accuracy
A strong area. Shows a balanced set up and good footwork to consistently hit the strikezone. Is very good on intermediate throws between the numbers between linebacker/safety level. Can drop the ball in over the top of coverage with touch and timing. Leads receivers when necessary, but can also stick it on the target in tight quarters.
Release/Arm Strength
Throwing mechanics and arm strength has really improved. Has become a smoother thrower with his delivery mechanics. Ball comes out quickly and with a consisted stroke. As a younger player he was a bit more tense and robotic, but has loosened up. Shows plenty of arm power to drive the ball when feet are set and even make throws off balance and on the run with good zip. There are moments when he will look really authoritative as pocket passer and drive the ball. He's a dual-threat that can zip it.
Bottom Line
Guarantano is continuing to get better and better. He's a passer first, runner second, but can be utilized as a designated runner in the zone read scheme which makes for a great play-action game with him. He is highly competitive and very productive overall. Will see attention from multiple power five conferences and particularly those who want athleticism under center.
Underclassman Eval
STRENGTHS: is a good looking prospect physically with developmental upside to his frame. Is a very good overall athlete who throws the football very well on the move. Has good footwork and set up and throws from a balanced platform. Can get rid of the football quickly and is very efficient in the short and intermediate passing game. Is an efficient and productive player in an offense that requires many different types of throws. ...
AREAS OF IMPROVEMENT: Doesn't appear to be overly flexible or always fluid with dropping from center. Arm strength is good, not great. Can lock out front leg and does not follow through with release. Release can be a bit low and slightly stiff. ...
BOTTOM LINE: Guarantano plays with poise and confidence. Is a good enough athlete to be a runner if need be. We wish he were a little more loose and fluid in his overall methods, but he does produce. More experience and physical maturity should allow him to bring his game to another level.
-ESPN Scouting Report