a step change in his role and experience

[need_advice]

Помогите, пожалуйста,

a step change in his role and experience

Контекст:

The Project Manager has recently made a step change in his role and experience (2005). Has he gained enough experience within a two year period to manage such a significant project?

Можно просто "получил повышение в 2005 г."?

Спасибо заранее.

[Zh]

может быть в 2005-ом значительно изменилась его сфера деятельности?

[segu]

step change [singular] British English
a big and important change in an organization or in society