How Dallas Cowboys can fill gaping hole opened by LT Tyron Smith injury

FRISCO, Texas — The Dallas Cowboys were thinking about life without left tackle Tyron Smith in the spring when they decided to select Tyler Smith in the first round of the draft.

That life is about to start a lot sooner than the Cowboys had hoped, with Tyron Smith suffering a torn left hamstring that could force him to miss multiple months, sources told ESPN.

How…