No, they stuff too many f*cking RJ’s through those hubs creating massive amounts of added variable costs. Nothing like being in CLT number 17 in line for Takeoff on 36C with 11 RJ’s in front of you, 3 RJ’s on final approach, and 5 RJ’s on the other side waiting to cross. Or how about number 15 in line on Taxiway M with 10 RJ’s in front of you waiting for ramp congestion to be sorted out. The associated heavy costs with those unnecessary delays include fuel, missed connections, etc. AA finally has the capital to invest in it’s infrastructure— it’s hubs will look much different in the not too distant future but the 50 seat RJ’s gotta go.