'need serious consideration' is correct and usable in written English.
You can use it to express that a particular issue or matter requires thoughtful and thorough examination. For example, "The consequences of a no-deal Brexit need serious consideration before any decisions are made."
"They're proposals that we believe need serious consideration for us to move forward.
"The scale of transformation recommended by this report will need serious consideration in terms of the financial cost of the ambition and workforce implications.
Students' lack of familiarity in more self-regulated, active learning environment can hamper teachers' ability to facilitate a flipped lesson, and thus, need serious consideration.
There are two key pieces of technology that need serious consideration when building the data warehouse: the front-end tool and the database.
"There are problematic aspects of transactions and wealth taxes that would need serious consideration," said Larry Summers, former Treasury Secretary to President Bill Clinton and economic adviser to President Obama.
Clearly the implications of this doubling will need serious consideration.
Increasing calls for TV replays to be made available to referees - Andy Gray, John Gregory, Harry Redknapp and David Mellor are among the lobby in favour - have made this an issue that needs serious consideration.
"Retransmission and access fees are an area that needs serious consideration and we're continuing to look at this complex issue," said a BBC spokesman.
The effects of the addition of other toxic activities to the homestead mix therefore needs serious consideration.
Dual practice is widespread in Peruvian urban settings and needs serious consideration when discussing health workforce reforms, including better regulation of professional practice [ 51].
Our findings along with other similar findings in conflict zones underline that delayed vaccination is an aspect that needs serious consideration in theatres of civil wars and conflicts [ 11, 27].
