The phrase "assigned to replace" is correct and usable in written English.
You can use it when referring to someone who has been designated or appointed to take over a role or position from another person.
Example: "After the sudden departure of the manager, Sarah was assigned to replace him and lead the team."
Alternatives: "designated to take over" or "appointed to substitute".
Lieutenant Neely was a forward observer in peacetime training, and was assigned to replace Lieutenant Pokorney last week.
He said the confidence of foreign donors would now depend on whom Mr. Abbas assigned to replace Mr. Fayyad.
Colonel Tara Osborn, assigned to replace Gross as the judge presiding over the case, allowed Hasan to keep the beard for the course of the trial.
In fact, that was what the developers were assigned to replace when McGuire-Fort Dix selected United Communities in 2006 to take over the responsibility of providing housing for those stationed here.
All of these patients were randomly assigned to replace valsartan by telmisartan (telmisartan group; n = 30) or to keep taking valsartan (control group; n = 21).
Gerardo Pollicita, the prosecutor assigned to replace Nisman in the inquiry, repeated the claim that supporters of the dead prosecutor have said led to Nisman's death.
Suspects or accused persons should "have the right to have the legal aid lawyer assigned to them replaced once", MEPs say.
Chris Britton (strained ribcage), who was pitching there, has been assigned to Scranton.... To replace Shelley Duncan (separated shoulder) on the Scranton roster, the Yankees have re-signed the veteran Ben Broussard.
She was then assigned to the Home Fleet to replace the sunken Courageous and sortied on 8 October with the fleet to hunt unsuccessfully for the Gneisenau and escorting ships which had been spotted off southern Norway.
She was then assigned to the Home Fleet to replace the sunken Courageous and embarked nine Swordfish aircraft from 816 Squadron and a detachment of three more Swordfish from 818 Squadron.
Jim Cushead-Murray, head of Greyhound's Los Angeles union local, said he views the bankruptcy filing as "a real positive development". He predicted that union leaders will ask the bankruptcy court judge assigned to the case to replace Greyhound Chairman Fred G. Currey with a trustee.
