The phrase "a willingness to split" is correct and usable in written English.
It can be used to express an openness or readiness to divide or separate something, whether it be resources, responsibilities, or opinions.
Example: "The team showed a willingness to split the project into smaller tasks to make it more manageable."
Alternatives: "an openness to divide" or "a readiness to separate".
She has balked at some tax cuts, pushed for more attention to rising federal deficits and generally shown a willingness to split from Republicans on issues where she sees more common ground with Democrats.
"The fact is, they vote cohesively, share the same concerns and have proven a willingness to split tickets, and so deserve maximum attention from both candidates," said Mr. Friedman, who supports Mrs. Clinton and provides his observations to some of her advisers, but is not working for any candidate in New York this year.
It has also highlighted Mr. Ryan's willingness to split with conservative Republicans here, who have accused him of governing as a liberal.
But Bashar al-Assad, the Syrian president, apparently would not give clear signals about his willingness to split with Iran, his patron in the region.
In the meantime, you can research the employer's willingness to split in other ways, such as checking the student evaluations in Helios and speaking to a student who worked there previously.
But the Democrat's willingness to split from party leaders on national security and privacy was not enough to overcome Gardner's consistent, calculated attacks tying Udall to the Obama administration on issues like health care and the economy.
Chief Justice John G. Roberts Jr. has often shown a willingness to put off decisions when the court is closely split.
Splitting a leased cab is a common arrangement among new immigrants with little money and a willingness to work long hours, said Andrew Vollo, the director of the LaGuardia program.
A willingness to forgo sleep.
