You do have a fixation with what clubs players play for don't you?
Lets get this straight - the highest level in football is international level. Making it at international level is the ultimate. Ask professional footballers and their ultimate goal is to represent their country not to say they played for Man United or Barca or Juve. That being the case judge players on how they do at international level and in my lifetime Scotland's best have been Goram, Leighton, Gordon, McGregor and Marshall. All are amongst our most capped goalkeepers of all-time.