Silly. Those 20% are currently shelved in low-end dead-end jobs. If your company were to offer a friendly environment for them, they would flock to you. You'd have your pick of top-flight people.

Its so easy to make up crap about how its impossible to fix the issue without (made-up strawman). How about turning our intelligence toward useful comments? E.g. you could look harder for truly qualified candidates from among the 20%?