As you mentioned before, Harry COULD BE an asset to the offense, if we were to spread the field a bit. But we don't do that. We make it easy for defenses to cover us by cramming everything into 10 yards.
Matt Ryan rookie year, 2008: Sacked 17 times in 434 attempts, threw deep (15+ air yards) 21.9% of the time.
Matt Ryan, 2009: Sacked 19 times in 451 attempts, threw deep 19.5% of the time.
Matt Ryan, 2010: Sacked 23 times in 571 attempts, threw deep 20% of the time.
Matt Ryan, 2011: Sacked 26 times in 566 attempts, threw deep 20.7% of the time.
Matt Ryan, 2012: Sacked 28 times in 615 attempts, threw deep 17.6% of the time.
Matt Ryan, 2013: Sacked 44 times in 651 attempts, threw deep 12.1% of the time.
Clearly the poor o-line play and injuries effected what the offense could and couldn't do in 2013.
As for reference, the league leaders in deep balls thrown:
2008: J. Russell, Raiders threw deep 27.4% of the time.
2009: J. Russell, Raiders threw deep 28.5% of the time.
2010: V. Young, Titans threw deep 32.7% of the time.
2011: T. Tebow, Broncos threw deep 33.5% of the time.
2012: J. Cutler, Bears threw deep 28.8% of the time.
2013: M. Vick, Eagles threw deep 31.2% of the time.