Check out this Fact Sheet from the USGA about what it takes to set up Congressional Country Club for this week's U.S. Open.   http://turf.lib.msu.edu/gsr/article/anon-open-6-10-11.pdf    Here's a few highlights:

# of Members of the Grounds Crew:
Congressional  =  55 + 120 volunteers this week (mostly superintendents)
Lake Valley = 10

Greens Mowing Height:
Congressional =  .100"
Lake Valley = .130"

Target Stimpmeter:
Congressional = 14 - 14.5 feet
Lake Valley = 9 - 9.5 feet

Typical Mowing Schedule:
Congressional:  All areas daily; Greens, tees, and fairways twice daily
Lake Valley:   Greens daily;  roughs, tees and fairways 2-3 times per week

They are able to accomplish this by having a huge crew of qualified available help, with their own 55 staff members plus 120 volunteers, and an unbelievable assortment of equipment (19 fairway mowers?!?!?!)  One of the most telling statements though is this quote:  "..these conditions are just temporary.  This level of conditioning cannot be sustained week-in and week-out without such tremendous support."