Why does he need a mobile q.b.? He has a mobile phone!!!1
These mobile q.b.'s are out there because there are not enough pro style q.b.'s coming out of high school. I would prefer a pro style q.b. anyday over a mobile q.b.
If a pro style q.b., such as Dan Fouts, can get his offensive line to hold blocks, then he will be more successful than a mobile q.b.
A defensive back can only stay with a wide receiver for a few seconds, then at some point, the wide receiver comes open. A completed pass will result in more than a first down yardage, plus it stops the clock.
However; a guy like Vince Young, who can't read defenses and can't go through his progressions, will look to throw to his primary receiver. Should primary receiver not be open, Vince will run for it. Meanwhile the second or third receiver is wide open 15 yards down the field. Vince scrambles for 6 yards, does not get the 1st down, and the clock keeps ticking. On that scramble, he also places himself in danger of getting injured.
Had Vince been patient, he would have seen the open receiver 15 yards down field, gotten the 1st down and stopped the clock.....
I will take a pro style q.b., E. Manning, P. Manning, Flaco, Doug Williams, Tom Brady, Doug Fouts, or Marino, rather than Vick, V.Young, Flutie, Tarkington, etc