I'm not going to do a lot of research, but am going at the first guy I looked at.
Ok, so how about this one? 11 starts (like Johnson above).
11 starts, 52.9%, 1749 yards, 9 td, 18 int 55.7 rating
That would be....
Troy Aikman
Ok, so a bit more research.
For reference, Leinart's line:
Leinart-16 starts, 56.0%, 3,194 yards, 13 td 16 int 71.2 rating
These are all top 20 (all but one top 13) QBs from last season, in their first year of starting, approximate number of games to ML...not sure on starts, but have games played.
16 games, 60.8%, 3,284 yards, 17 tds, 16 int, 76.9 rating (second season)
That would be:
Drew Brees
13 games 60.9% 2,897 yards, 18 td, 18 int, 77.3 rating (second season)
That would be:
Carson Palmer
12 games 49.1% 948 yards, 8 td, 7 int, 60.1 rating (rookie year)
That would be:
Donovan McNabb (and his second year was comparable, but better in td/int ratio, though the same amount of games as ML overall)
15 games, 63.2% 3,845 yards 22 td, 22 int, 81.4 rating (3rd year)
That would be:
Marc Bulger (and the rams lost a double OT game for a shot at the NFC title game that season)
15 games, 63.9%, 2,843 yards, 18 td, 12 int, 86.5 rating (2nd season)
That would be:
Tom Brady...won super bowl that year, much better passer rating, much better team
15 games, 54.5%, 3,346 yards, 23 td, 16 int, 77.7 rating (3rd season)
That would be:
Jon Kitna, and though you may berate him, he tossed for 4K yards in back to back years on really bad teams.
So, what does this all mean?
Not more or less than the stats you posted. But it does mean one thing, that is very important. Trying to pigeonhole Leinart as a flop this early in his career is stupid. We just don't know. He has injury issues, yes. He had decision problems last season, yes...with his 3rd QB coach in two years and second head coach. And god knows how many OCs. He has shown flashes of brilliance and flashes of crap. But we don't know. It is time to relinquish the reigns of "we know better than them" to the coaches who KNOW him better than we do. Every aspect. His demeanor. His work ethic. His footwork. His dedication. His value to the team.
Coach Whis and his crew do NOT want to fail. They want to win. And if they really feel that Matt is the man to lead the team to wins, then we should probably **** and relax and see if they are right. If they are...pop the corks! If they aren't, then we have bigger problems than Matt v. Kurt 2.0.
We can cite stats all night, which I'm sure my post made you itch to do. But bottom line, nothing will be proven until this team hits the field.