Todd Davis is poised to return, and the Broncos need him

  ENGLEWOOD, Colo. — Monday at RingCentral Coliseum under the late-afternoon northern California sun, Todd Davis ran. He was at full speed. He kicked his knees up as he went through the paces of his workout. It wasn’t the first time he’d moved at full speed in his recovery from a calf injury suffered on the first day of training…