unable to set AU user directreport property in powershell

Scenario

in AD, I have a user named Nykkie, who has a direct report property called Rebecca

My attempt 1

I tried to replace it with jamesc via powershell, but getting below error:

PS C:Windowssystem32> get-aduser NykkieG | Set-ADUser -directreports jamesc

Set-ADUser : A parameter cannot be found that matches parameter name ‘directreports’.
At line:1 char:39
get-aduser NykkieG | Set-ADUser -directreports jamesc
~~~~~~~~~~~~~~
CategoryInfo : InvalidArgument: (:) [Set-ADUser], ParameterBindingException
FullyQualifiedErrorId :
NamedParameterNotFound,Microsoft.ActiveDirectory.Management.Commands.SetADUser

My attempt 2

get-aduser NykkieG | Set-ADUser -manager jamesc

it worked, but it did not change the “direct report” field

Any advice or workaround ?