On Romo playing, take the under

Officially, Cowboys quarterback Tony Romo is questionable for Sunday’s showdown with the 6-1 Cardinals.  The 50-50 safe harbor allows the Cowboys to keep the Cardinals guessing as long as possible regarding whether they’ll be facing Romo or backup Brandon Weeden. Then, at or about 11:30 a.m. ET on Sunday, the Cowboys will submit their game-day…