We already have staff who are running out of ports. Wired ethernet is required in order to auto-mount home directories at login, for machines to be managed when nobody is logged in, enterprise data backed up to the corporate servers, not to mention imaged or upgraded - on a multi-VLAN enterprise Wi-Fi network with full user creds required (i.e.: not just a simple Wi-Fi password, something EFI doesn't support).
And everyone with an Air or Retina has an external display at their desk. This means that on MBAs - which only have 1 Thunderbolt - it's necessary to use the display/Thunderbolt adapter, while resorting to plugging the machine into Ethernet/USB adapter (which is appallingly slow). And, of course, power.
So, three ports down to one.
But people, especially executives, will insist they have to have one.
This should be fun. :-/