Were you, you know, actually reading people's replies? Because here are the points I saw various posters raise:
1. San Diego would never go for this trade
2. QB is not the primary problem with this team
3. Your plan would postpone dealing with the fundamental problems of this Bills team, namely offensive and defensive line
I haven't seen anyone arguing that Losman is going to be a great player. The closest I've seen is that perhaps it's not wise to throw him away after one half-season starting on a pretty poor team.
So, sorry if people disagreed with your suggestion, but c'mon. "Bring in a star QB to save the franchise" is your big idea?