Here is a little information for you. Other than the 36 Compass EMB-175's. No aircraft with more than 76 seats or 85,000 lbs may be flown by any DCI and must be flown by Delta Pilots. This includes the NWA Pilots since we both agreed to the JPWA (joint pilot working agreement). If Delta gets anything bigger than that it will be flown by mainline pilots. Also not to place fuel on any fires but Delta does have CRJ-900 (and comparable aircraft) rates in our present contract. I am not arguing the pros or cons of such a move just stating facts like the author of this thread requested. Any C-Series aircraft or anything bigger than the size limits mentioned above will be flown by mainline pilots unless relief in the contract is given. I doubt that will happen.