The correct comp, IMO, for Fitzgerald w/ Anderson (and/or Max Hall) as his QB is Randy Moss in "the Oakland years."
2006: 13G / 42 REC / 553 YDS / 3 TD
2007: 16G / 60 REC / 1005 YDS / 8 TD
Fitz seems to have a better motor than Moss does, so he might see some added "hustle" benefit to his numbers, but I'm not sure that's enough to make him even a Top-10 WR. I think he continues to struggle until he gets a QB that is passably accurate.
FWIW, here are the WRs who were taken ahead of him in my league: