Two months after the private equity firm Thoma Bravo acquired Apttus, things look quite different on the company's management team. The latest change is the departure of Chief Strategy Officer Jeff Santelices, who left the company this week, according to sources familiar with Apttus. Santelices had a $4.7 million parachute package, according to documents reviewed by Business Insider. It's unclear whether he qualifies for that package, or if it was approved by shareholders.