An undefeated season, includes a win in the ACCCG over Clemson, a ranking no lower than #2 IMO, and 1st round CFBP bye.
In that case, if Cam or Gabriel keep doing what they're doing, either one will get it regardless of what Jeanty does. Right now Cam's odds are hurt because of the soft schedule and the closeness of the last two games. But he has a chance to pull away with statement wins against Louisville, FSU, and Duke and then showing out in the ACCCG
Since 2000, only three RBs have won it (Henry, Ingram, Bush) but they all came from the #1 team at the time. Bush and Henry had two of the best years for a RB in recent memory. Ingram had weak competition (Gerhart, McCoy).
The closest a non power conference got to the Heisman in that span was LT (4th, TCU) and Rashaad Penny (5th, SDSU)
Jeanty has considerable hype right now, but I imagine the heisman part of it dies down as the season goes on. He will need to approach Sander's rushing yards or hope both Ward and Gabriel falter down the stretch to keep his lead.