Rattler brought with him some concerns – notably a below-average 6-0, 211-pound frame and a lack of elite arm strength – but his good athleticism and five years of college experience helped endear him to NFL teams make. He impressed during the pre-draft process by winning MVP at the Senior Bowl, and that allowed him to work his way into the mix as a mid-round candidate.

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NFL.com's Lance Zierlein rated Rattler in Round 4, giving the quarterback mixed grades and questioning whether he had the traits necessary to ever become a consistent NFL starter.

“Rattler will still get glimpses of what he showed in his 2020 season as a Sooner, but fails to consistently sustain the type of play NFL teams are looking for,” Zierlein wrote. “He lacks the desired size to be a pocket passer and doesn't have enough arm strength to beat greedy NFL cover men. He's been better than some of his 2023 numbers would suggest, as poor pass blockers and drop-prone receivers often find him cornered.” He can hustle and extend plays, but he's not a dynamic runner and needs optimal protection and separation, to work in rhythm.

“(Rattler) needs an offense that can shrink the field so he can move quickly and find his rhythm,” Zierlein added. “He has the expertise, but may not have the depth or attributes to inspire the confidence to project as more than a QB2/3.”