Daboll in 2009, Cleveland his first year as OC, Brady Quinn, Derek Anderson at QB, 30 in attempts, 32nd in passing yards. Browns went 5-11.
Daboll in 2010, Cleveland in his second year as OC, Colt McCoy, Jake Delhomme, Seneca Wallace at QB. 28th in attempts, 29th in passing yards. Browns went 5-11.
Daboll in 2011, Miami in his third year as OC, Matt Moore, Chad Henne, JP Losman at QB, 28th in attempts, 23rd in passing yards. Miami went 6-10.
Daboll in 2012, KC in his fourth year as OC, Matt Cassell, Brady Quinn at QB, 29th in attempts, 32nd in passing yards. KC went 2-14.
Since 2012 Daboll went back to NE to be assistant coach, TEs coach till 2016. Went Alabama to be their OC in 2017.
Now that you see all that is it unusual that the Bills are currently 30th in passing attempts, 32nd in passing yards with a rookie QB?