The Kansas City Chiefs passing attack should be better in 2015 based simply on fewer drops. The Chiefs receivers last year did Alex Smith no favors with the amount of passes they dropped and this stat from PFF proves it.
In 2014, Colin Kaepernick and Alex Smith were tied for the highest % of passes dropped by targets with 7.1%. pic.twitter.com/1HAKIvN8tg— Pro Football Focus (@PFF) June 11, 2015
By my calculations based on Smith's 464 passes last season this works out to roughly two drops per game. Smith completed 65 percent of his passes last season. He would have been over 70 percent if you counted those drops as catches.
Smith absolutely needs to get better, especially in creating a more vertical offense. But the drops last season didn't help. (Cue an argument in the comments about whether it was Smith's fault or the receivers)