Compare SQL column against another column

In a recent effort to clean up duplicates in my contacts I came across a script to assist me.

In my situation I have some contacts that have had the company name inserted as the first/last name.

SELECT id,
	[Company],
	[Title],
	[First Name],
	[Middle Name],
	[Last Name]
FROM [OutlookContacts]
WHERE Company LIKE '%' + [First Name] + '%'
ORDER BY [Last Name]

In my case almost all of the records could be modified to null the first and last name but if you need to limit the update modify the WHERE statement accordingly.

UPDATE [OutlookContacts]
SET [First Name] = NULL,
	[Last Name] = NULL
WHERE Company LIKE '%' + [First Name] + '%'