The phrase "accrued expertise" is correct and usable in written English.
You can use it to describe knowledge or skills that have been accumulated over time through experience or practice.
Example: "After years of working in the industry, she has developed a significant amount of accrued expertise in project management."
Alternatives: "gained knowledge" or "developed skills".
The benefits accrued from their expertise will far outweigh their salaries.
With cuts forcing dramatic structural change and widespread redundancies, one of the most difficult issues public sector managers are facing is how to mitigate the loss of staff with years of expertise and accrued knowledge.
However, expertise and accrued knowledge regarding the SSM/T-2 data record is limited because it has remained underused for climate applications and reanalyses.
To hear Eubank tell it, none of "The Signal's" fictional universe would exist but for the technical expertise he accrued over eight years as a prep technician at a certain motion picture equipment company in Woodland Hills.
That is a lot of expertise accruing about brain neuroscience.
Funding can be obtained by academia from various sources and expertise can be accrued by industry through various internal and external sources.
Dickerson spares few details while recalling the many failures that culminated in a modestly financed but undeniably successful indie feature film, writing in a voice that's confident yet humble, and generous with the analytical expertise of film he accrued while studying Directing at the prestigious American Film Institute (AFI).
It failed to capitalize on the expertise that its delegation had accrued in Madrid and Washington in the two years prior, sending to Oslo inexperienced negotiators with little knowledge of the situation in the occupied territories or international law.
Among those cited by Hitchens was Susan Shields, a former worker with the Missionaries of Charity, who claimed that vast sums of money accrued in bank accounts but very little was spent on medical expertise or making the lives of the sick and dying more comfortable.
Macs were invented for them: people without IT support, with no skills or office training, with very little likelihood of ever accruing any knowledge or expertise, with no backbone or basic housekeeping procedures.
