I am trying to create a validation rule for the below:
1) Only certain profiles and Tom Smith may select the picklist value "Strategic" 
2) Once an account is designated as "Type = Strategic", only the above listed profiles/users may change it back to another value.

Below is what I have so far, looking for assistance on how to add a specific "user" to the below as well as #2 above.

AND(
ISPICKVAL( Type , "Strategic") ,

$Profile.Name <> "System Administrator Master",
$Profile.Name <> "Sales Administrator",
$Profile.Name <> "CSM System Administrator"
)