Dynamic SQL Sp_executesql And Employee ID List Varchar

For the example stored procedure below, lets say I want to use the "sp_executesql" stored procedure instead of "EXECUTE".

 CREATE PROCEDURE [dbo].[spGetEmployees]
@managerId int,
@employeeIdList nvarchar( 200 )
AS

EXECUTE
(
'SELECT *
FROM [dbo].[hrEmployees]
WHERE [ManagerID] = ' + CAST( @managerId AS nvarchar ) + '
AND [EmployeeID] IN (' + @employeeIdList + ')'
)

 

 

I want to rewrite it something like this. Please see MSDN documentation ( http://msdn2.microsoft.com/en-us/library/ms188001.aspx ) for sp_executesql stored procedure usage.DECLARE @selectStatement nvarchar(500)
SET @selectStatement = 'SELECT * FROM [dbo].[hrEmployees] WHERE [ManagerID] = @paramManagerID AND [EmployeeID] IN (' + @employeeIdList + ')'


DECLARE @paramList nvarchar(500)
SET @paramList = '@paramManagerID int'

EXECUTE sp_executesql @selectStatement, @paramList, @paramManagerID = @managerId

 

Reason for using "sp_executesql" is the performance gain.
However, as you can see, the @employeeIdList cannot be included as part of the Parameter List ( @paramList )
like the @managerId since it **has** to be passed in as a varchar ( example: @employeeIdList = '1,2,3,4' ).

My Question 
Is there a way to include it as a parameter instead of it being part of the embedded dynamic SQL syntax?