Jake Haener
My take would be that his arm talent is good enough if he's strong in some other areas, which he appears to be.
I think he has to wind up more than someone like Carr to achieve his velocity, but I think that may be able to be worked out to some degree with an example of someone like Brady who came in without a great arm but who managed to perfect his throwing motion to a point where he certainly ended up with an above average NFL arm.