I've already bought in to the notion that open arrangements may have short-comings. But in the Bay Area circa 2014 what arrangements are being tried out and se

I've already bought in to the notion that open arrangements may have short-comings. But in the Bay Area circa 2014 what arrangements are being tried out and seeing advantages? Low cubes, high cubes, fully enclosed offices, bull pens, mini bull pens, periodic re-arrangement, unassigned?