Go back to school, ggsimmonds.
Brett Favre 2nd year as starter, 1993 - 3300 yards, 19 td, 24 int, 72.2 rate
Brett Favre 3rd year as starter, 1994 - 3800 yards, 33 td, 13 int, 90.7 rate
(Favre was the 1994 NFL MVP)
Drew Brees 2nd year as starter, 2003 - 2100 yards, 11 td, 15 int, 67.5 rate
Drew Brees 3rd year as starter, 2004 - 3100 yards, 27 td, 7 int 104.8 rate
(Brees was injured in 2003)
Peyton Manning, 2000.. not a huge jump but he did lead League in passing yards and touchdowns for the first time.
Phillip Rivers 2nd year as starter, 2007 - 3150 yards, 21 td, 15 int, 82.4 rate
Phillip Rivers 3rd year as starter, 2008 - 4000 yards, 34 td, 11 int, 105.5 rate
(Rivers lead the NFL in tds and rating in 2008)
2001 NFL Champs - Patriots.. their starter.... 3rd year QB Tom Brady
2007 NFL Champs - Giants.. their starter.. 3rd year QB Eli Manning
... you were right on Cunningham. His MVP-caliber season was 1990, which was his 4th year. My bad there.

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