Marcus Mariota happy to take luck, as he gives Titans hope

Rookie quarterback Marcus Mariota has the Titans playing better. But he’s not going to apologize for a little luck, either. Mariota admitted that his first touchdown was fortunate, an attempted heave out of bounds which was tipped by Saints cornerback Keenan Lewis and safety Jairus Byrd before tight end Delanie Walker took it 61 yards…