The phrase "and then devise a" is correct and usable in written English.
You can use it when discussing the process of creating or planning something, typically following a previous action or thought.
Example: "After analyzing the data, we will identify the key issues and then devise a strategy to address them."
Alternatives: "and then create a" or "and then formulate a".
He would invite his studio audience to suggest song titles and then devise a lyric instantly.
It is best practice to pose a question or hypothesis and then devise a suitable experimental design to find an answer.
We first formulate this problem as a mixed integer programming model and then devise a three-stage heuristic approach to solve the problem.
We always have 'fish of the day'; it's very exciting for me to wait and see what seafood comes in that day and then devise a dish from it.
"And you're telling me you want to invest more in them?" He often exhorts his employees to "take a point of view of the future," and then devise a plan supporting it.
In 2014, I initiated a Change.org petition calling on the Obama administration to address the FGM problem in the US by first ascertaining the prevalence of FGM here and then devise a national plan to end the practice and provide services to FGM survivors.
This paper presents a dynamic network algorithm, VAILDN, that is able to receive nodes sequentially from a network and then devise an optimal set of vaccination nodes to ensure maximum protection of the network.
Under current guidelines, the state performs an audit after a school is put on the list and then devises a plan for improvement with the school administrators.
The challenge the administration now faces is twofold: negotiating a new transportation bill with Congress amid great uncertainty over where the money will come from and what it should be spent on, and then devising a system that would ensure that in times of limited resources, the worthiest projects get money.
Learning to identify your own tendencies, your own emotions, and then devising a strategy to help you in those moments.
One team used it to detect drug resistance mutations in colon tumors and then devised a drug combination to beat the cancer back.
