> a pivotal time in IBM's history.

Gerstner changed the culture, but there was perhaps no greater and more startling visible change than:

"IBM withdrew from the retail desktop PC market entirely, which had become unprofitable due to price pressures in the early 2000s. Three years after Gerstner's 2002 retirement, IBM sold the PC division to Lenovo." [1]

[1] _ https://en.wikipedia.org/wiki/Lou_Gerstner