Remember Bobby Douglass? He was, once upon a time, the foremost running quarterback in the NFL, rushing for 986 yards, eight rushing touchdowns and an insane 9.6 yards-per-carry average in 1972.
If you have not heard of Douglass, it may be because he compiled stunningly average passing numbers for below-average teams that season. He completed 37.9% of his passes, which was a horrible number even in the chuck-heavy early 1970s. Douglass was a one-trick, one-season pony, and he proved then what we know now—that a running quarterback without a fully developed sense of the position and an evolved passing game around him is destined to failure sooner than later.