Why did I think Michael when I saw this?
Here's how I'd handle Westbrook. I'd take my weakside LB (his name is LaVar) and run blitz two thirds of the time. I'd shadow the RB with my FS (his name is Sean) and put him in man with Westbrook each time. Either Westbrook picks up the blitz, leaving Sean in a short zone; or he runs to the flat, leaving LaVar on a crash course with McNabb and being covered by a ball-hawking monster.
But I'm not GW, so I'm sure he has ideas as well.