The 1972 Dolphins were No. 1 in scoring offense , No. 1 in scoring defense .
The 1972 Dolphins won most of their games with wrinkly 38 - year - old career back - up Earl Morrall at quarterback .
The 1972 Dolphins were No. 1 in scoring offense , No. 1 in scoring defense and won most of their games with wrinkly 38 - year - old career back - up Earl Morrall at quarterback .