This is an overreaction. I'm not sure if anyone has called you on this, not going to read through all 9 pages, but at this point I don't see how anyone can act like they know Sanchez is going to be, or already is, a "terrible QB". His statistics have shown noticeable improvement from his first year to his second and he is only 24. There is room for growth and at times he has put together some very solid ball games and displayed some grit as well.
Don't act like the greatest QBs are exempt from miserable games throughout their careers. Some of the weaker performances of Brady's career include:
2003 @ Buffalo (0-31 L): 14/28, 123 yds, 4 Ints
2004 vs Miami (24-10 W): 7/19, 76 yds, 2 Tds, 1 Int
2005 @ KC (16-26 L): 22/40, 248 yds, 1 Td, 4 Ints
2006 @ Indy (20-27 L): 20/35, 201 yds, 4 Ints
2006 @ Miami (0-21 L): 12/25, 78 yds
This is comparing him to arguably the greatest QB of all time. Sanchez hasn't really proven anything yet one way or the other, but he has shown potential and won in the playoffs already. Jury remains out on him for now.