Oil and water is putting in mildly. Martz is the antiparcells.
Martz= throw it down the field score quick, score often, and send the defense out there and hope for the best while the offense rests. If you are far enough ahead, you don't have to worry about the fourth quarter.
Parcells = Grind it out, slowly and methodically with an occasional deep pass to keep opposing defenses honest. Work the clock, work the offense slowly, wear down opposing defenses while his defense rests. Play to win in the fourth quarter.