There has been much speculation now that we have hit the coolest month (February) as to the health of the golf course and why some areas are discolored. As everyone knows we did not over-seed the golf course which gives us a strong agronomic advantage going into the Spring and Summer, as we do not deal with the "transition" of perennial ryegrass/poa trivialis dying out and bermuda grass growing back in. Bermuda grass, which is our main-stand of turf goes in a period of "dormancy" during the cooler months which allows the plant to store carbohydrates and survive during these cooler months, this is why the turf currently appears discolored. But not to worry, the golf course will quickly green-up when consistent warm weather moves in. A few benefits of not over-seeding are less irrigation (dryer and firmer conditions), better weed control, no-transition period which results in a stronger base turf which would be bermuda grass, and more rounds which are noted by our awesome golf professional staff:

Round counts at the Country Club of Orlando for Ocotober-Mid February are as follows:

'13-'14  = 8,596 total rounds

'14-'15 = 10,231 total rounds

The following article goes into much detail as to the advantages and disadvantages of over-seeding and why it can vary from golf course to golf course depending on the region of the golf club. 

http://www.golfcourseindustry.com/gci-0710-alternatives-overseeding.aspx