You know what? After further review, you may have something here!
Fitz YPA for 2010 - 6.8
Fitz YPA for 2011 - 6.7
Fitz made 569 attempts in 2011 so 569 X .1 = 56.9 yards (if my math is correct and that's not always the case).
Lee Evans had 74 yards receiving this season. Hmm, there's pretty much the difference right there.