2017 Outlook: Replacing future Hall of Famer Peyton Manning is no easy task, but Siemian held down the fort about as well as could be expected for a seventh-round pick entering his second season. Siemian completed only 59 percent of his passes (ninth lowest), but his 8.8 average depth of throw was 11th highest. He tossed 18 touchdowns and 10 interceptions. Siemian didn't sport much fantasy appeal (three top-10 weeks) and will need to fend off 2016 first-round pick Paxton Lynch in order to retain Denver's starting gig this season.
2017 Outlook: McCown has played for three teams over the past four years and was one of the league's least-effective quarterbacks last season. Still, the 38-year-old will get at least one more shot after the desperate Jets handed him $6 million guaranteed. McCown has had short stretches of competent play, most notably when he posted a 13-to-1 TD/INT mark in 224 attempts in Chicago back in 2013, but his play was nowhere near acceptable last season. He was off target on an NFL-worst 24.8 percent of his throws. While McCown is the heavy favorite to open 2017 as the Jets' starter, the leash will be short with Christian Hackenberg and Bryce Petty expected to get work.
2017 Outlook: Kizer is mobile and has a very good arm, but he struggles with accuracy and decision-making. He was off target on a massive 14.5 percent of his throws last season, which is easily worst among all quarterbacks who attended the combine. Granted, he threw downfield more often, but his 59 percent completion rate is concerning. Kizer is the biggest (6-foot-4, 233 pounds) and youngest (turned 21 in January) among this year's incoming rookie quarterbacks, but he's a raw talent who ideally would spend most of his rookie season with the clipboard. Of course, Cleveland's uncertain quarterback situation likely means he'll make several starts in 2017. The second-round pick is unlikely to provide much fantasy value in 2017.
2017 Outlook: The Broncos traded up to select Lynch in the first round of last April's draft as a potential successor to Peyton Manning. The Memphis product spent most of his rookie season on the bench behind Trevor Siemian, completing 49 of 81 passes for 497 yards and a pair of touchdowns. Albeit in a small sample, Lynch struggled with accuracy out of the gate (off target on 24.1 percent of throws). Siemian is one of the league's low-end starters, so Lynch is a strong bet to, at least, make a sizable chunk of starts this season. He has a big arm and is mobile, so, armed with Demaryius Thomas and Emmanuel Sanders, it's possible he sneaks into the QB2 mix.
2017 Outlook: The Bears traded up to select Trubisky with the second overall pick in April's draft. He figures to spend a significant chunk of his rookie season learning the ropes behind Mike Glennon. Trubisky completed 304 of 446 attempts (68 percent) for 3,748 yards, 30 touchdowns and six interceptions during his final season at North Carolina. He was charted as off target on 7.3 percent of his throws, which was best among quarterbacks who attended the Combine. Pro Football Focus' No. 2-graded FBS quarterback last season has a big, accurate arm and is a good athlete who will add yardage with his legs (93 carries, 308 yards, five touchdowns last season). The 6-foot-2, 222-pound pocket passer has the tools needed to thrive at the pro level, but is unlikely to play much in 2017.
2017 Outlook: Mahomes is 6-foot-2, 225 pounds with a big arm and decent accuracy. Mahomes' final season at Texas Tech saw him complete 388 of 591 attempts (66 percent) for 5,052 yards, 41 touchdowns and 10 interceptions. Also a decent athlete, Mahomes racked up 285 yards and 12 touchdowns on 131 carries. His total QBR of 84 trailed only Watson among this year's rookie quarterback stable. Mahomes has drawn comparisons to Jay Cutler as a boom/bust, mistake-prone player, but he obviously has a ton of experience and the tools to be molded into an NFL starter. He'll spend most of his rookie season on the sideline, but would be a sneaky QB2 if Kansas City finally pulls the plug on Alex Smith.