Take into the account the skills and abilities of your athletes before deciding on the defense you want to run.
Finally, the most important factor in creating the best defense for your team is your personnel. You can only successfully run a defense that plays into the strength of the players on the field. Do you have quick, athletic linebackers? Are your defensive linemen big and strong? Are your defensive backs physical and athletic. Take into the account the skills and abilities of your athletes before deciding on the defense you want to run. The best defense for any team is one that is most effective in stopping the offense, yielding the best results for the team.