International Business Machine‘s (NYSE:IBM) Watson Health GM Deborah DiSanzo is stepping away from her position heading the division to join the strategy team for IBM Cognitive Solutions, according to a STAT News report.

Cognitive Solutions and IBM Research senior VP John Kelly will step in to take the reins of the healthcare-focused division, according to the report.

Circumstances around the departure are “unclear,” STAT News reports, adding that Watson Health has been seeking to recover from “a series of stumbles.” DiSanzo joined the company in 2015, having previously headed Philips Healthcare.

The move comes after the company cut back on the portion of its business that sells to hospitals due to a softening market for value-based healthcare offerings and laid off a portion of its workforce, primarily at recent acquisitions for which the tech giant paid at least $3.6 billion.