Dallas Cowboys head coach Mike McCarthy having issues with Dak Prescott, AndyTony Pollard and 2 other superstar after following…….

FRISCO – Upon the Jones family’s takeover of the Dallas Cowboys, Jerry and oldest son Stephen immersed themselves as quickly as possible into the day-to-day operations of an NFL franchise.

Among the focus points for Stephen: Learning the art of contract negotiations from team exec Bob Ackles, a key aide to GM Tex Schramm.

And among the lessons stressed by the late Ackles to a then-25-year-old Stephen?