More deliberate obtuseness--I meant that Oswald was to blame for complaining during the line-up, and thus giving himself away as the suspect. He could have complained later.

Come on. Oswald complained from the very first lineup. If the cops wanted to make the change, they would have done it after only one lineup. So at most he gets id'ed by Witness #1 - either for causing a ruckus or for sticking out for his shabby appearance. Nipped in the bud, end of problem. And he certainly isn't to blame because no proper adjustments were immediately made by the police for all the subsequent lineups!!