If this was my script that opening scene with Tom and Steve would become the plot. Tom would find he has much more in common with this unemployed yet good-natured loser than he does his petty, sales-orientated colleagues.
Someone else already suggested it I think, but having that opening scene end with Tom downing cans of cider with Steve and quitting his job that way would be a lot funnier.
Basically, I want this sitcom to be about Tom and Steve. A smart yet under-achieving young man helping out a middle-aged, unemployed drunk. Scrap the Door to Door thing entirely.