Bryant fumbled for the second time this season during his side's win over the New York Giants as he tried to get extra yardage on a play, and although the ball fell out of bounds he cost his side a first down conversion.
"He's violent when he's got the ball," Jones told 105.3 The Fan. "He's violent going after the ball. Consequently, he does need to have that ball in closer. He needs to fundamentally have it closer to his body.
"A lot of this is a natural, physical way he plays football, and you're not going to coach it out of him."
The Cowboys are 6-5 in their season after week 12.