Compared to last yrs 7.4 ypc. That's a massive difference considering TA will be slightly better this upcoming yr, due to incremental improvements in his game, compared to last yr.
And while it's true better QB play/pass offense opens up the run gm etc. It doesn't account for a 2ypc dip of a RB that's even better than he was the prior yr when he ave 7.4 ypc. The main difference is SOS.
The above said, even if TA "only" ave 5-5.5 ypc and 1000 rush yds, that would be extremely impressive given the SOS, new/lesser Qb play etc.