To be honest CJ hasn't been very good at throwing the ball deep this year. I seem to remember one bomb to Tevaun for a TD, and a couple deep throws to Jerminic Smith that one game...and that's about it. I think that huge first down to Vandeburg during the ISU game was a short pass from what I remember, but I could be wrong.
Seems like every time his WR's have their man beat, CJ overthrows them. Its a concern I've had for awhile now, and I'm sure they're working on it. Luckily the TE's and RB's have been beast mode.
edit: For the record I'm talking long throws of 30+ yards in the air. Not plays like the Kittle TD where its a 10 yard pass that goes for 50.