Let me point you to these stats...
319 rushes - 3.2 YPC, 183 rushes - 3.5 YPC, 316 rushes - 3.8 YPC, 299 rushes - 3.6 YPC, 355 rushes - 3.8 YPC, 187 rushes - 3.6 YPC, 246 rushes - 3.3 YPC, 250 rushes - 3.8 YPC, and 110 rushes - 3.3 YPC
The above stats belong to HOF'er Jerome Bettis. Those are 9 of his 13 seasons. He only topped 4 YPC 4 times. As a receiver, he averaged 15 catches a yr.
Barber ain't going anywhere, until Rojo proves his worth. After all, his YPC was twice that of Jones. Also, if you want more examples of consecutive low YPC's, just let me know. I found plenty.