Earlier quoted context omitted.
Is the founding team of braintree still in control of the company?
No. According to the article, the investors kicked out the founder in 2011 and brought in a new CEO with a history of getting companies acquired.
"I'm the former CTO of Braintree and one of the founding employees. I was there when Bryan Johnson hired Bill Ready as CEO and decided to move to Chairman. The authors of the TechCrunch article were either misinformed or speculating when they said that Bryan "lost his position" and that Bill joining was a "decision made by Accel." Bryan made the decision to hire Bill and move into the Chairman role without pressure from anyone."