It Isn't Just Individuals
Below is the story of an individual Marine spending his own money on equipment that should be issued but isn't and now Maru
points to this Boston Globe
article by Bryan Bender: Marine units found to lack equipment
The Marines are in constant motion to and from war zones and it is taking a toll on their equipment. It isn't receiving the maintenance and repairs that it should have and much of it is reaching the end of its scheduled life well ahead of normal.
This Pentagon can't even handle the routine part of the military, the part that has direct civilian counterparts. Much of what is going wrong deals with inventory control, preventive maintenance, and scheduling. These things are available in manuals, and not arcane military lore. These people lack the competence to operate a pizza delivery service, much less the world's largest military.