Your analysis is perfect, excep for one fatal flaw:
"Charlene Angel, one-time Records and Accounting Manager for TetraCorp who defected to TriOptimum"
- The attribution of a quote in Terminal Access.
And someone couldn't really defect to another branch of the same company, could they? Hmmm... maybe TriOp bought out TetraCorp sometime during the gap between 1 and 2...