One development that undoubtedly shaped the 2019 NFL regular season was an a sortment of quarterback injuries, which led to an unprecedented 17 first or second year pa sers making appearances at some point from Week 1 to Week 17. I watched every play from those young quarterbacks each week, taking every individual aspect of their performance into account before a signing a grade. As the season progre sed, I simply averaged the number grades (87.5 for a B+, 85 for a B, etc.) for each quarterback to arrive at a letter grade. Below you'll see Week 17 evaluations if that quarterback appeared in the regular season finale and Freddie Swain Jersey season summaries and season grades for all first- or second-year pa sers studied in this project. BAL QB #8 Season Summary: Jackson was borderline unfair in 2019, particularly after he cooled slightly following an explosive start to the season. Greg Roman's offense provided Jackson many open throws and Baltimore might have the best offensive line in the NFL, but don't get me wrong -- from his refined pocket movement to his throw-on-the-run skills to his ridiculous impact as a runner, Jackson's play was of MVP-caliber. He mi sed on a fair amount of long balls but routinely got through his reads, worked the short-to-intermediate levels of the field well and fit an a sortment of tight-window throws to the intended target. Also, the former first-round pick rarely put the ball in harm's way after September. Jackson had seven A games -- including three A+ outings -- and just three contests in the C range. Season Grade: B+ (87.6) BUF QB #17 Season Summary: Allen took the most sizable step forward of any second-year quarterback this season. His pocket presence and pocket drifting were significantly better than in 2018, as was his short/intermediate accuracy. His long-ball accuracy was simply not good for basically the entire year. In this evaluation project, all completions were not created equal, and Allen had the most impre sive throws on his second or third read and/or after sliding away from pre sure in the pocket. After some Cody Barton Jersey bad hero ball decisions early in the season, Allen took good care of the football while maintaining his stellar work at the intermediate level. He was a weapon with his legs in the red zone for the majority of the season. There were some blips along the way, and at times Allen moved out of clean pockets, but his steady play was a big reason the went 10-6. The additions of and along with an upgraded offensive line were key in Allen's development. He had one D grade, two C- contests, a pair of A performances and 10 outings in the B range. Because he threw just five pa ses -- two screens, one pa s behind the line, one throwaway, and one on-target deep ball -- it did not make sense to factor in his appearance in the season finale against the . If you want to count that outing (which I gave a B-), Allen's season grade was 83.4. Season Grade: B (83.5) SEA QB #2 Best Throws:In the first half, Lock absolutely ripped a long throw down the numbers to through traffic. Then, while scrambling right, found an open receiver on a throw against his momentum for a third-down conversion. Near the end of the second quarter, Lock showcased impre sive speed on a scramble to get a first down. In the third, off play-action, Lock got to his second read and threw a laser to Sutton on a cro ser for 18. Worst Throws:Under pre sure on the first drive, Lock narrowly overthrew Courtland Sutton down the sideline. In the second, Lock mi sed high on an in-breaking route down the seam Rashaad Penny Jersey to Sutton. In the third, he sailed a throw down the numbers to . Summary:Lock had a solid albeit unspectacular game against a bottom-third secondary at home to end the season, and the first half was better than the second. Grade: C+ Season Summary:Lock stepped in late in the year for the and acclimated instantly, often showing off his rocket of an arm and willingne s to try and fit the ball through tight windows. His pocket presence was mostly good, and his scrambling ability was utilized often. There were a few bad decisions and off-balance throws, but the Broncos should certainly feel encouraged by what their rookie quarterback demonstrated down the stretch. Season Grade: B- (81.0) ARI QB #1 Best Throws Lofa Tatupu Jersey : Late in the first, Murray lofted a seam shot to for a somewhat easy touchdown. After a long stretch of incompletions, while rolling right, Murray found through moderate traffic for 16 yards. In the final minute of the half, Murray dropped an absolute dime to down the sideline for 33 yards. In the third, Murray found Arnold with a step on his defender and hit him in stride for 37. His touchdown was a ripped slant to Byrd against tight coverage. Worst Throws: He mi sed Kirk down the sideline with a woefully overthrown pa s. He threw a long fade to Arnold before the end of the half that sailed out of bounds in the end zone. On his first interception, Murray hesitated, then threw behind . His second pick was a seam pa s thrown too high for Arnold. In the fourth, he threw late on a sideline comeback that should've been intercepted but was dropped. Summary: This game put the perfect cap on Murray's season in terms of it being a microcosm of his rookie campaign. The wow throws there and so were the mi ses and bad decisions. He scampered around to create but also took him hits and sacks because of his improvising. Brandon Shell Jersey Grade: C- Season Summary:Murray started slowly, then heated up before a long stretch of solid but unspectacular play. He hit two consecutive brutal games before his finest pair of efforts leading into the season finale. His arm talent was noticeable in every game, and only a few flat-out inaccurate to ses led to big plays for the defense. He had some problems identifying coverages and his running was good, not great; the same can be said for his pocket presence, although he got antsier as the season progre sed. Arizona's blocking was subpar for the most part, and the receiver group didn't do him many favors. While he was decently impre sive overall, Murray's stats were a bit inflated by Kliff Kingsbury's screen-heavy offense. Murray had two D grades, a pair of D+ outings and three A- grades. Season Grade: C+ (78.5) IND QB #10 Best Throws: Minshew scrambled right and ripped a sidearm pa s to for a first down. He later stretched his arm strength to the limit on a perfectly placed long ball to down the sideline, then on the next play found him in the end zone on a bootleg. On his last throw of the season, Minshew rolled right then threw acro s his body for a touchdown.