It's really, really, really, really hurting us.
We need aircraft (C-17's) and helicopters, and lots of them.
We're trading off people on the ground for manuever warfare. The theory has been that we can cut costs ($$), but the aerial requirements for manuever warfare have been, and continue to be, grossly underestimated.
Whatever we do as a strategy, we need aerial maneuverability and backup (in depth) for that.
We do not have it; in fact, we barely have it.
Not to mention that we really do need about two times more the number of people on the ground in theatre.