The phrase "a challenge in how" is correct and usable in written English.
It can be used when discussing difficulties or obstacles related to a particular method or approach.
Example: "There is a challenge in how we implement the new software across different departments."
Alternatives: "a difficulty in the way" or "an issue with how".
Obama, throughout his career, has faced a challenge in how best to manage his political antecedent.
The Falluja Battle Is Won; Now the Challenge Is Trust As military officials in Falluja prepare to start letting the first residents return, they face a challenge in how to win back the confidence of the people whose city they have just destroyed.
The party did not make much headway in the May elections this year, apart from gaining MSPs in Scotland and coming third in the London mayoral elections, and also faces a challenge in how to compete with a more leftwing Labour party under Jeremy Corbyn.
Identifying the visual demands of different sporting tasks presents a challenge in understanding how vision could limit or enhance the potential for sporting 'eliteness'eliteness
Cross-screen advertising is a big buzzword (buzzphrase?) right now, but Tremor CTO Steven Lee said that when it comes to running a campaign, there's still a challenge in deciding how much money to allocate to each platform.
This poses a challenge in rethinking how we rank and rate colleges today, which has traditionally been based on an alchemistic mix of hard-to-measure elements such as reputation and campus-based statistics, such as acceptance rates, library and endowment sizes, etc.
A challenge in defining how these factors mediate control of beta cell function is the failure of most mutations to mimic the human phenotype in rodent models.
Silos can be important for accomplishing specific, focused tasks; however, although fragmentation in silos undoubtedly improves specific skills, some participants argued that this fragmentation presents a challenge in determining how to be effective while still maintaining professional competencies.
Both candidates will face a challenge in terms of how much they could actually do if elected.
"Now we are in a serious financial challenge in how we deal with unfunded pensions, unfunded health care, and the mandates we are under in other areas," Governor Corzine said.
There remains, however, an on-going challenge in how to assess its role in achieving health improvements.
