Even worse , if Dallas is unable to flip the field position with kick returns .
The offense is unable to pick up a first down , the opponent 's ensuing drive is likely to begin closer to mid field than Dallas ' own end zone .
Even worse , if Dallas is unable to flip the field position with kick returns and the offense is unable to pick up a first down , the opponent 's ensuing drive is likely to begin closer to mid field than its own end zone .