Warrior General Games

I know most of the time, a balanced QB = fail.

But is it possible to convert a lvl 20 QB who has very high passing and just train speed/agi for about a season and then use all sp's into speed. Would it translate nicely?

I'd take throwing and vision to both the 74 cap, strength to 68 and confidence to 68 before anything having to do with rushing. That way when you're working on those attributes in the later half of your career you'll get all of the auto level gains from the pocket passer portion.