screen passes

been wondering why we never throw them.  i can honestly only remember one all season.  that was yesterday against miami and it went for 28 yards.  and this is without leon, of course.  why weren't we throwing them to him?  he's very good.  even with him out, i'm pretty confident screens can be effective.  throw them to jones.  throw them to greene.  throw them to keller.  just throw them.

can we petition schottenheimer to call at least 3 screens a game?  please help.  it will make our offense more diverse and efficient.

thank you.