Senior administration officials noted that the order begins to address the challenge of ensuring that cybersecurity professionals have mobility into and outside of federal government and industry.

"United States Government policy must facilitate the seamless movement of cybersecurity practitioners between the public and private sectors, maximizing the contributions made by their diverse skills, experiences, and talents to our Nation," the order said.

The administration is also creating a federal rotational program in which feds can expand their expertise through temporary cyber-related assignments within other agencies, in hopes that new exposure will increase skills and encourage interagency knowledge transfers. The program mirrors a bipartisan bill that the Senate passed this week, which enables some cyber professionals to rotate across various agencies.

Excerpts from the above-linked report [May 1, 2019]:

existing federal tech talent would have avenues to bolster their training and experience, while smaller agencies would gain access to cyber employees who can improve their security posture. ... the bill expands existing employees’ opportunities while promoting “better recruitment and retention of this critical workforce.” ... The bill would direct the Homeland Security Department and Office of Personnel Management to first “develop a list of rotational cyber workforce positions” suitable for the program, which would be updated annually. Those agencies, along with the Chief Human Capital Officers Council, would—within 270 days of the bill becoming law—issue an operational plan “providing policies, processes and procedures” for the rotational program.

Archiving because of a recent obsesrvation that an American employee of the Federal Post Office (who evidently wasn't a
newly hired trainee) was not allowed to use a computer at all, even to help with a customer question. It was also observable
that most likely every American-born citizen employed by the Post Office in this country had not been considered a
"qualified" enough applicant to operate a desktop computer for a Supervisory Management opening there; which was given to
a surly "selectee" with a foreign accent indicating that they had arrived rather recently from the region of India or Pakistan:

Trump to overhaul visa program for high- skilled workers | TheHill | 04/17/17 | Excerpts:

aims to overhaul the H-1B visa program used by tech companies to bring high-skilled workers to the U.S. ... senior administration officials described the current H-1B visa program as a lottery system that indiscriminately hands out work visas to contracting firms that recruit low-skilled, low-wage workers to replace domestic laborers.

They say a new system is needed to ensure that the program returns to its original purpose of bringing in high-skilled, high-paid workers to fill more specialized or technical roles. ... One senior administration official described “abuse” of the program as any company that “brings in a worker not because you need their skill or talent, but for the purpose of undercutting the American worker” by seeking out cheap foreign labor.

it is intended to raise the qualifying criteria for applicants so that only top earners with specific skill sets are considered. ... [The] H-1B [Visa] was intended to be a skilled worker program, but most of those using it are paid less than American workers in their field.” ... the program has become an end-around to flood the market with cheaper, unspecialized foreign laborers willing to work for below-market wages.

“The current system awards visas randomly with no regard to skill or wage,” the official said. “This will make it tougher to undercut American workers because they will no longer be replaced by workers making beneath the market wage.”

How ‘INDIANS’ will be affected if US changes H1B visa rules. - YouTube, 5.75 minutes | Published on Feb 1, 2017 by WILD ENGINEER

Major Indian tech shares took a nosedive on Tuesday on reports that Trump is planning to make changes to the H-1B visa program that allows skilled foreigners to work in the U.S.Now, that system is under attack on multiple fronts. Three separate bills have been introduced in the U.S. Congress this month aiming to curb the program in various ways.

Trump H1B visa 130K Problem SOLVED (English) - SOLUTION explained in 5 minutes - YouTube, 5.75 minutes | Published
on Feb 26, 2017 by Radiant Lead

Checkout our analysis and a possible solution for the H1B visa 130K [$] issue.

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Some Visa info @ Wikipedia:

American Competitiveness in the 21st Century Act [2000] - to increase the effective number of visas available and make it
easier for workers on those visas to switch jobs. [Translation: A Clinton era law ordering Americans to compete with more
Foreign Workers.]

H-1B Visa Reform Act of 2004 and L-1 Visa Reform Act of 2004

H-1B visa

L-1 visa

O visa

EB-1 visa - unlike most EB-2 and EB-3 applicants, [EB-1s] don't have to go through the "labor certification" process.
[Wikipedia has no EB-4 Visa/Green Card category for special immigrants but does have this link for the EB-5 Investor Visa.]