While the Patriots rarely need an edge, winners of three of the last four Super Bowls, the threat of advantage will be something the Chargers look to make a non-factor.
The plays themselves will largely stay the same but certain elements of the calls will change and the looks of different packages will adapt.
The defense will also have to present some new looks given Flutie's familiarity running against it.
"It's really an opponent we haven't played in quite some time," Patriots quarterback Tom Brady admitted. "He's (Flutie) been in my ear for a couple of days. Tim Dwight has done a great job with helping us out."
"I think we all know that Doug has a wealth of experience in a lot of different systems," Patriots head coach Bill Belichick said. "He knows how to attack defenses and attack the way teams play."
It is a double-sided coin. Flutie can be instrumental in aiding the offense with the things he sees and he can be in the defensive huddle to combat San Diego's offense.
With 20 years of experience under his belt, the diminutive backup quarterback has a firm grasp on what he sees on the field.
He would make an excellent coach.
"I don't think coaching is (in my future)," Flutie said. "I have seen the job. I don't like it. I don't like the hours. I don't like the insecurity of it."
For now, the spikes are still on his feet and not ready to be hung out to dry. This week he may be on the sidelines but his presence will be felt.
"I am pretty sure he has some input on the gameplan," running back LaDainian Tomlinson said. "A lot of the stuff that he told us was going on on the field, you might as well have taken that to the bank, because it was exactly what he had said."
The Chargers will counter by juggling the language they use on the field and altering the snap counts. The plays may remain close to the same but the little nuances will change so they can't be predicted.
Rest assured, Flutie will still have his say this week.
"The understanding of how we operate," head coach Marty Schottenheimer explained of what Flutie knows. "He can tell them exactly what it is."
So says the possum.