Analysts ask: Did Samsung cut corners in shipping Note7 replacements?

Smoke billowing from what appears to be a replacement Samsung Galaxy Note7 caused the evacuation on Wednesday of a Southwest jet on the ground in Louisville. No one was injured.
Samsung is trying to retrieve the Note7 to verify whether it is indeed a replacement unit. Meanwhile, the U.S. Consumer Product Safety Commission and other federal authorities are conducting investigations.
If it is indeed a replacement Note7, Samsung will face some tough questions about whether it cut corners in offeri