The reality that Dak is green right now is obvious to the staff. I'm pretty confident they'll do everything they can to accelerate his reads, although it'll surely take more time for him to shake off the hesitation. Hopefully, once he gets more comfortable with his reads, he won't need to overthink things and his reaction time is gradually bound to improve.
Repetition and familiarity with the system breeds confidence and that means everything. It's just a question of how much he'll improve and if it's enough to start. If nothing else, he might quite possibly become a capable backup. That, in itself, might constitute a valuable step ahead.