I doubt he's going to see 80% in that offense. The Jets ran the ball a league high 607 times last year and while they may look for a little more balance, don't expect a huge drop off either. This team should be looking at 525 team carries or more.
So 80% of last years number would be a staggering 485 carries!! If you go 80% of the 525 you are still looking at 420 carries, again, not going to happen.
Last year Thomas Jones was 2nd in the league with 331 carries. That is only 54.5% of the team carries. Greene was the next highest with 17.7% of the carries while Leon Washington who was hurt mid year had 11.8%. The top 3 combined for 84% of the carries with the other 16% spread around between QB, wildcat packages, FB's and WR's.
The core 3 combined for around 510 carries, even looking at 80% of that your at 408 carries. What I see this year in NY is Greene taking on the Jones roll and taking around 45-50% of the carries in the offense. That will put him in the 240 to 290 carry range. LT and Washington will be last year's Greene and Washington. They will combine for around 190-220 carries.
The good thing about this RBBC is there are a TON of carries to go around.