Mere months after adding three new executives to its team, the chief executive of mobile payment platform provider Leaf, Aron Schwarzkopf, will be stepping down. And, according to a source close to the deal, the move might not have been made on Schwarzkopf’s accord.

Taking Schwarzkopf’s place will be Sarah McCrary, who was hired in March as the company’s COO. McCrary described the shift in a statement, saying:

We can confirm that Aron has left Leaf to pursue other ventures and that the board appointed me to the CEO position. It’s important to emphasize that our strategy remains the same: Leaf was the first mobile payments platform to take an agnostic approach to payment acceptance, enabling small business owners to choose the payment provider that best fit their needs. Leaf was also the first to open its technology platform to third-party developers, empowering them to create applications that address the myriad challenges small businesses face every day. I supported this vision as Leaf’s COO, and will continue applying my wealth of payment technology experience to drive sales, customer success, and innovative technological developments in this new role.

Prior to joining Leaf, McCrary held a variety of IT project and product development leadership roles at Heartland Payment Systems — an early distributor of Leaf that pumped $20 million into the company back in September 2013.

With the $20 million, Leaf lost controlling stake of the company, said a source close to the deal. The company expanded into a new, 15,000-square-foot Kendall Square office, however, and McCrary was brought on, joining the executive team alongside Chad Kelly, vice president of finance, and Dan Smith, vice president of engineering.