Poor Officiating in the Lions game

In Sundays lost to the Cowboys the lions in my eyes were cheated.  I say this because on the Cowboys final drive that won the game the Lions defensive ends were being held the whole drive but nothing was called.  And when Tony Romo was getting ready to throw the ball on the game winning touchdown the Lions defensive end got held right in front of the Ref and he didn't call anything.  There was also a pass interference on the cowboys, now the Refs originally made the call but then picked up the flag and waved the penalty.  It was clear as day pass interference but after Dez Bryant the wide receiver from the cowboys ran onto the field trying to make a case with the Refs.  The Refs later came forward and said that the call should have stud.  It was also a rumor that the head Ref was parting with the team on a bus.