quoted from Case 9–CC–1660...
"on August 7 ALPA presented a formal grievance to DHL Holdings. ………The grievance further claimed that ALPA pilots employed by ASTAR should perform all flying for Airborne. ……………ALPA reiterated and made clear its position that only ALPA members employed by ASTAR could fly the freight for Airborne that had previously and was presently being flown by the Teamsters Union flight crews of ABX"
Don't bother tap dancing around it. It doesn't get any clearer than that.