Yes. Even Bernard Hopkins trains hard to keep his athleticism above good. He is smart enough to know Smarts dont get you out of everything.
Yes, Undoubtedly. If you are not athletic right now, that doesn't mean you cant train to become athletic, you need a lot of hand eye coordination, strength, speed, and above all else in my opinion cardio!
being a good boxer is a boxing requirement.
Duh
Do you have to be athletic to be a good boxer?