There are a few deadheads to the west coast (OAK, LAX, etc.) that allow you to deviate and "begin" your trip in Dallas on a deadhead. Of course, American will charge you a little extra to drop the leg from MEM-DFW, which you will have to pay out of your own pocket.

There are two night flights to MEM from commuting purposes, and I think two during the day as well.

Of course, as more and more of you new hires want to commute from DFW, the competition for seats may make commuting a little harder.

My suggestion would be to move to Memphis!