A breakdown of Cassel's numbers:
Passes completed behind the line of scrimmage: 7/7, 3 yards, 0 TDs, 0 INT
Passes 0-9 Yards: 14/18 101 yds, 1 TD, 0 INT
Passes 10-19 yards: 1/5, 15 Yds, 0 TD, 1 INT
Passes 20+ yards: 0/4, 0 Yds, 0 TD, 0 INT
His downfield accuracy has to get better, plain and simple. Why do you think Haley is calling 7 screen passes a game. The playcalling is bad too, but is it because they don't trust Cassel to throw the ball downfield?