Strengths

• Flashes intimidating attitude and will crush tiptoeing receivers across the middle.
• Willing and successful blitzing off the edge. Consideration for a move to safety with a combination of range and sure tackling.
• Good speed in pursuit with the chase skills to track down the ballcarrier.
• Gives up his body in run support with a very good closing burst.
• Lean, athletic build with plenty of room for additional muscle mass. Legitimate NFL-caliber athlete.

Weaknesses

• Needs to get stronger. Too easily lost in the trash. Not a sudden athlete and shows body stiffness when attempting to quickly redirect.
• Inconsistent getting off of blocks. Can be a step slow to react when a quarterback comes back to his side of the field late in progression.
• Has only average long speed and body flexibility.
• Questionable technique and he gets lazy with fundamentals, sometimes getting high in his backpedal and will breach the coverage call seeking flashy plays
• Lowers his shoulder for the big hit rather than wrapping up securely.

Jack Koerner percentiles vs other Safety's (NFL Combine historically - higher value represents better perfomance)