Your CRM doesn't need more data. It needs more truth.
Most pipeline hygiene projects fail because they treat the CRM like a database problem. It's not. It's a courage problem.
Reps don't avoid updating deals because they can't. They avoid it because it forces a moment of honesty: 'Is this actually real?'
If you want cleaner data, stop punishing bad news. Reward early truth. The CRM will follow.