My lineup is complete -- or is it?

My lens acquisition strategy: balance speed/image quality/weight/price, and get a full range of focal lengths. Here's my current lineup:

Canon 10-22
Tamron 17-50 f/2.8
Canon 50mm f/1.4
Canon 70-200 f/4

I can't think of any other set of 4 lenses that better meets my criteria -- can you?

Tuna