Wrong assumption. The Department of Justice is supposed to be independent, and to work without fear or favor. It has not been entirely so under Trump, and Biden has committed to re-establishing that independence.
“We need to restore the honor, the integrity, the independence of the DOJ of this nation that has been so badly damaged,” Biden said.
“I want to be clear to those who lead this department who you will serve: You won’t work for me. You are not the president’s or the vice president’s lawyer. Your loyalty is not to me,” he added. “It’s to the law, the Constitution, the people of this nation.”
https://www.cnbc.com/2021/01/07/bid...ck-merrick-garland-vows-doj-independence.html
if the government has no interest in something, particularly an EO that will take a stroke of the pen to reverse, that is a rather more obvious solution than trying to influence the DoJ to work to political ends.