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Steve Young reaches NFC Championship in his 4th year
Kurt Warner = 3rd year
Drew Brees = 6th year
Peyton = 6th year
Elway = 4th. year
Where are you getting 4th year for Steve Young? He didn't become the primary starting QB for SanFran until his 5th year with the team in 1991. He spent 2 years in Tampa and a season with LA in the XFL before joining the 49ers. He finally reached the NFC championship in 1992 as the starter at age 30. It then took 2 more seasons before he won a SB. Shows that QB may not contribute early, but still has time to develop.
Kurt Warner also took a long path. He won a SB in his second season in the NFL, but he spent several years honing his craft in lesser leagues before ever joining the NFL at age 27.