AA is doing many of the same things that DL is doing. Acquiring larger capacity aircraft, and adjusting frequencies. Upgauging some aircraft in the regional markets and reducing frequencies to maintain seat counts and reduce CASM. Replacing 3 44-50 seat regional jets and replacing them with 2 76 seat regional jets can maintain capacity and help deal with the pilot shortage on the regional front. Also AA is moving some of the regional capacity into mainline with the introduction of the 319 to it's fleet mix. So a market that is slot constrained can still be grown.