When i starting playing Madden 08 a lot when it came out, i started getting a lot of the achievements playing normally... it just got addictive, and i got to about 40 of the 48. After playing and playing trying to get them without what i call, "adjusting features" (as opposed to your strong wording, "cheating"

), i just had to--that's how i got all 48. Too close to give up.
But for this particular achievement, i think i had my all 100% created player (for special circumstances) do it for me. Had him returning punts/kickoffs. This guy had all 100% stats, so he was the fastest on the field, and was like 6-10... could truck anybody for an extra 10 yards (if not the TD return).