The Bears completely overhauled their QB room this offseason, letting Mitchell Trubisky leave, signing Andy Dalton, and trading up in the 1st round to draft Justin Fields. The goal is obvious: improve a passing attack that finished last year ranked 28th in yards/attempt, 18th in passing TD, threw the 4th most interceptions, and had the 24th passer rating among 32 NFL teams.
With that in mind, I want to look at each of the additions compared to who they replaced to see how likely it is that they actually provide the desired upgrade. I’m starting today with Andy Dalton, who the Bears have insisted is still their starter.
Let’s start with a surface-level view of Dalton’s passing stats compared to Trubisky and Nick Foles, the 2020 QBs.
Since playing time has been spotty for all of them over the last few years, due to a combination of injury and sometimes being the backup, I’m going to use cumulative 2018-20 stats for all of them to give a decent sample size (600+ pass attempts for each). I’ll include the NFL average over that time period to see how each QB stands relative to their peers.
As you can see there, a first glance makes it look like Dalton doesn’t provide much improvement over the status quo. The three QBs vary quite a bit in completion percentage, but all come up well below the NFL average in both yards per attempt and TD to INT ratio. If anything, Trubisky was the most productive QB of the three (though this is not an argument for keeping Trubisky. They are all bad NFL QBs). If you’re really curious about the 2020 Bears specifically, they completed 66% of their passes, averaged 6.4 yards/attempt, and had 1.6 TD for every INT.
However, we can take a closer look to see if there’s something we might be missing. Let’s split up passes into short (less than 15 yards past the line of scrimmage) and deep (15+ yards past the line of scrimmage). Here’s the same table as above, only with that split applied. Short passes are highlighted in orange, deep passes in blue.