Those projections have been about as wrong as they could be the past few yrs. IIRC, the same theory predicted low 800s last season and they missed by about 150 runs. In terms of offense, I'd expect..
Posada to have a sharp decline from his prior numbers back to career norms.
Giambi to have a significant increase from last yr since he was seriously injured.
Cano to have a significant increase from last yr since he had that 3 mo. stretch of suckitude
Jeter to be about the same
ARod to be a bit worse than last yr, but still a .300 40HR 130RBI guy
Matsui to be significantly better since he was hurt for parts of the yr and still had 100RBI
Damon to be better than last yr, mostly because he had a horrific start
Abreu to be similar to last yr but more consistent.
Melky to be slightly better than last yr
And Duncan and Betemit being wild cards against lefties.
Take a look at the perfect storm that hit our offense last season and still resulted in a 960 run season.
Matsui hurt his hammy in the opening series and missed a couple weeks. Then he hurt his knee in august and was awful closing the yr
Abreu hurt his oblique in ST and was terrible to the AS break. When he finally warmed up, he was one of the deadliest hitters in baseball
Cano uncharacteristically could not hit for the first 3 months of the yr. He did end up at .300, but the prior yr he hit .340 and had it not been for the slump, he would have been there again.
Damon hurt his calves in the opening series and wasnt the same for the first half of the yr, refusing to take DL time. By the time we had help in the OF and at the DH slot with Betemit and Duncan, he was able to take the time needed to get healthy and contributed significantly.
Giambi was lights out in April, but tore plantar fascia in May and wasnt the same. He rushed back and was awful. His injury and that surgery typically takes 6-12 months to fully heal from. Expect a resurgent Giambi.
Jeter battled ailments all season long.
Melky bookended a solid 4 month stint with an april and september of futility.
Now I understand that this yankee team is old, and injuries happen. But the amount and the timing of the injuries last yr was pretty horrendous. And I know that as age creeps up, so does unpredictability. But when these guys were healthy, they mashed. So they didnt really show decline in their abilities, more a decline in staying healthy. Hence, the added depth for this yr should help. I still expect a mid 900s run scored regardless what that stupid theory offers.