The phrase "a problematic set of" is correct and usable in written English.
It can be used to describe a collection of issues or challenges that are difficult to address or resolve.
Example: "The researchers identified a problematic set of variables that complicated the analysis of the data."
Alternatives: "a challenging group of" or "a difficult collection of".
This becomes a rather problematic set of circumstances for FOMC policymakers with real Q1'15 GDP growth looking like 0.5% Q/ Q SAARand disinflation trends transitioning out of the price data.
The calculation of the PSI score also requires laboratory, blood gas, and chest radiography data, making this a more problematic set of tests to perform in the emergency room setting.
Chiang also has an explanation for another discovery of Kepler's: superpuffs, a rare and equally problematic set of planets that have a smaller mass than super-Earths but appear huge, with a puffed-up atmosphere making up 20% of their mass.
A second, much more problematic set of Lukács' commitments becomes explicit in the writings between the 1930s and the 1950s.
This also applies to the large and even more problematic set of issues concerning data security and data utilisation.
The researchers also delved into possible explanations for why some babies had the problematic set of gut microbes, finding that those children were more likely to be boys and to grow up in a household without a dog.
We conclude that our findings lay the ground for further, more extensive investigations to identify the active EOMS component(s), promising in the therapeutically problematic setting of chronic vaginal candidiasis in humans.
A characteristic of the careful work required to probe and prove out competitive harms that's nonetheless especially problematic set against the blistering pace of technological innovation and disruption.
One creative way to think about building a culture is to present fresh recruits with a set of problematic challenges--challenges that must be solved collectively--and then get out of the way as they attend to these challenges informally.
This view reflects a set of problematic assumptions, including beliefs that Jerusalem produces a contest between maximalist claims that only power can resolve.
Within mainstream clinical psychology, the overall aim of the BE is to treat clients' problematic beliefs as a set of hypotheses to be tested.
