Cabling & Wiring Best Practices

With everything running on the network, the cabling infrastructure specification decision (as well as power) is more important than ever, because it's this backbone that will prepare the end user and their facility for the future... In fact the cabling infrastructure is only two percent of the cost of a network while it can cause up to 50 percent of the network problems.

In 2009, Anixter identifies cabling infrastructure as the #1 overlooked costly network element.  What are your thoughts on overlooked aspects of cabling and wiring in 2015?