The phrase "a simpler concern" is correct and usable in written English.
You can use it when discussing a topic or issue that is less complex or easier to address than another concern.
Example: "While the budget is a significant issue, we also have a simpler concern: ensuring that all team members are on the same page."
Alternatives: "a more straightforward issue" or "a less complicated matter."
Several pieces by Trisha Brown show a simple concern with tracing a straight line by unusual methods.
Although it resembles the thinking behind traditional affirmative-action efforts, the discrimination-and-fairness paradigm does go beyond a simple concern with numbers.
While I never doubted the worthiness of any of these goals, the concept that most often eludes legislators is: 'Can we make consumers pay the higher prices for the increased operating costs that accompany public regulation and government reporting requirements with reams of red tape.' It is a simple concern that is nonetheless often ignored by legislators.
The police say they had a simple concern: If they engaged the crowd, the disturbance could have gotten so out of control they could not have contained it.
A simpler problem concerns the dilute concentration regime where the quiescent equilibrium is isotropic, non-degenerate, and stable, which is the focus of this paper.
And this comes back to a simple, basic concern about cameras: Are they worth the money they're spent on if they can be switched off by officers at any time?
Moreover, a simple application, concerning a discrete parameter model subjected to road irregularity, follows, confirming the validity of the new proposed method.
Otherwise, a simple heuristic concerning the time between two accesses is used to divide sessions [13, 20].
To see how this view is claimed to offer a satisfying take on disagreement, consider a simple example, concerning predicates of personal taste.
Each subject was asked to fill out a simple questionnaire concerning alcohol flushing [17] that asked (a) Do you have a tendency to develop facial flushing immediately after drinking a glass (≈180 ml) of beer (yes, no, or unknown)?
