01DATA
The signals live in five systems that don't agree
CRM says one thing, billing another, the warehouse a third. Until the data is connected and continuously validated, any model built on it is guesswork with extra steps.
02VALUE
There's no number the model is supposed to move
A project that starts from a technique instead of a KPI can't prove it worked, and can't defend next quarter's budget. "Interesting" is not an outcome.
03ADOPTION
Great in the demo, invisible in the workflow
Accuracy in a notebook means little if predictions never reach the CRM, the queue or the person deciding. Integration and latency kill more models than math does.
04DRIFT
Accuracy erodes quietly after go-live
Customers change, markets shift, data drifts. An unmonitored model gets confidently wrong, slowly at first, then all at once, usually in front of a customer.