Writing and Directing Drama

Within this 'Steve McQueen' play I have got some ideas as to who this person is and where they are. 

One of my main ideas is that the main character is a man who is a boaster and I believe that he is making this story up and I believe he is making it up because of who he is.  He is a down and out character who is just barely getting by in his work. , which I would say is an estate agency.  I then thought of writing down shots of him at his workplace with other younger workers talking about him, or a younger manager shouting at him.  I then believe that he could then deliver his story within a crummy bar where he is possibly trying to seduce a woman by telling this story about his meeting with Steve McQueen.  And since he works in an estate agency, his story is very believable since he is naturally a good talker.  But I can envision him not succeeding in talking with this woman which therefore makes his character more tragic.  This character that I have in my head is quite like Jack Lemmon's character Shelley Levene in the movie "Glengarry Glen Ross" which was written by David Mamet.

"Drama is life with the dull bits cut out"

                                            Alfred Hitchcock